<?xml version="1.0" encoding="us-ascii"?>
<!--XBRL document created with Toppan Merrill Bridge  9.5.7293.39921 -->
<!--Based on XBRL 2.1-->
<!--Created on: 3/2/2020 7:16:31 PM-->
<!--Modified on: 3/2/2020 7:16:31 PM-->
<xsd:schema xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:gkos="http://www.glaukos.com/20191231" xmlns:attributeFormDefault="unqualified" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:num="http://www.xbrl.org/dtr/type/numeric" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.glaukos.com/20191231" xmlns:us-gaap="http://fasb.org/us-gaap/2019-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31" xmlns:us-roles="http://fasb.org/us-roles/2019-01-31" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:us-types="http://fasb.org/us-types/2019-01-31">
  <xsd:annotation>
    <xsd:appinfo>
      <link:roleType roleURI="http://www.glaukos.com/role/StatementConsolidatedBalanceSheets" id="StatementConsolidatedBalanceSheets">
        <link:definition>00100 - Statement - CONSOLIDATED BALANCE SHEETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/StatementConsolidatedStatementsOfOperations" id="StatementConsolidatedStatementsOfOperations">
        <link:definition>00200 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/StatementConsolidatedStatementsOfComprehensiveLoss" id="StatementConsolidatedStatementsOfComprehensiveLoss">
        <link:definition>00300 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/StatementConsolidatedStatementsOfCashFlows" id="StatementConsolidatedStatementsOfCashFlows">
        <link:definition>00500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryDetails" id="DisclosureSummaryOfSignificantAccountingPoliciesSummaryDetails">
        <link:definition>40201 - Disclosure - Summary of Significant Accounting Policies - Summary (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBalanceSheetDetailsShortTermInvestmentsDetails" id="DisclosureBalanceSheetDetailsShortTermInvestmentsDetails">
        <link:definition>40301 - Disclosure - Balance Sheet Details - Short-Term Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBalanceSheetDetailsOtherDetails" id="DisclosureBalanceSheetDetailsOtherDetails">
        <link:definition>40302 - Disclosure - Balance Sheet Details - Other (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBalanceSheetDetailsPropertyAndEquipmentDetails" id="DisclosureBalanceSheetDetailsPropertyAndEquipmentDetails">
        <link:definition>40303 - Disclosure - Balance Sheet Details - Property and Equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureFairValueMeasurementsFairValueHierarchyDetails" id="DisclosureFairValueMeasurementsFairValueHierarchyDetails">
        <link:definition>40401 - Disclosure - Fair Value Measurements - Fair Value Hierarchy (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureLeasesBalanceSheetAndExpenseDetails" id="DisclosureLeasesBalanceSheetAndExpenseDetails">
        <link:definition>40503 - Disclosure - Leases - Balance Sheet and Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureLeasesMaturityDetails" id="DisclosureLeasesMaturityDetails">
        <link:definition>40504 - Disclosure - Leases - Maturity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureLeasesMaturityDetailsCalc2" id="DisclosureLeasesMaturityDetailsCalc2">
        <link:definition>40504 - Disclosure - Leases - Maturity (Details) (Calc 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessCombinationsOtherDetails" id="DisclosureBusinessCombinationsOtherDetails">
        <link:definition>40601 - Disclosure - Business Combinations - Other (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessCombinationsAssetsAndLiabilitiesAllocationDetails" id="DisclosureBusinessCombinationsAssetsAndLiabilitiesAllocationDetails">
        <link:definition>40602 - Disclosure - Business Combinations - Assets and Liabilities Allocation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessCombinationsIntangibleAssetsDetails" id="DisclosureBusinessCombinationsIntangibleAssetsDetails">
        <link:definition>40604 - Disclosure - Business Combinations - Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIntangibleAssetsAndGoodwillOtherDetails" id="DisclosureIntangibleAssetsAndGoodwillOtherDetails">
        <link:definition>40701 - Disclosure - Intangible Assets and Goodwill - Other (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIntangibleAssetsAndGoodwillMaturityDetails" id="DisclosureIntangibleAssetsAndGoodwillMaturityDetails">
        <link:definition>40702 - Disclosure - Intangible Assets and Goodwill - Maturity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIntangibleAssetsAndGoodwillOtherCalc2Details" id="DisclosureIntangibleAssetsAndGoodwillOtherCalc2Details">
        <link:definition>40702 - Disclosure - Intangible Assets and Goodwill - Other - (Calc 2) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIncomeTaxesProvisionReconciliationAndDeferredTaxesCalc2Details" id="DisclosureIncomeTaxesProvisionReconciliationAndDeferredTaxesCalc2Details">
        <link:definition>40801 - Disclosure - Income Taxes - Provision, Reconciliation and Deferred Taxes (Calc 2) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureStockBasedCompensationSharesReservedForFutureIssuanceDetails" id="DisclosureStockBasedCompensationSharesReservedForFutureIssuanceDetails">
        <link:definition>40907 - Disclosure - Stock-Based Compensation - Shares Reserved for Future Issuance (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIncomeTaxesProvisionReconciliationAndDeferredTaxesDetails" id="DisclosureIncomeTaxesProvisionReconciliationAndDeferredTaxesDetails">
        <link:definition>41001 - Disclosure - Income Taxes - Provision, Reconciliation and Deferred Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIncomeTaxesTaxCreditCarryforwardsDetails" id="DisclosureIncomeTaxesTaxCreditCarryforwardsDetails">
        <link:definition>41003 - Disclosure - Income Taxes - Tax Credit Carryforwards (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSelectedQuarterlyFinancialInformationUnauditedDetails" id="DisclosureSelectedQuarterlyFinancialInformationUnauditedDetails">
        <link:definition>41401 - Disclosure - Selected Quarterly Financial Information (Unaudited) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DocumentDocumentAndEntityInformation" id="DocumentDocumentAndEntityInformation">
        <link:definition>00090 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/StatementConsolidatedBalanceSheetsParenthetical" id="StatementConsolidatedBalanceSheetsParenthetical">
        <link:definition>00105 - Statement - CONSOLIDATED BALANCE SHEETS (PARENTHETICAL)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/StatementConsolidatedStatementsOfStockholdersEquity" id="StatementConsolidatedStatementsOfStockholdersEquity">
        <link:definition>00400 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureOrganizationAndBasisOfPresentation" id="DisclosureOrganizationAndBasisOfPresentation">
        <link:definition>10101 - Disclosure - Organization and Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSummaryOfSignificantAccountingPolicies" id="DisclosureSummaryOfSignificantAccountingPolicies">
        <link:definition>10201 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBalanceSheetDetails" id="DisclosureBalanceSheetDetails">
        <link:definition>10301 - Disclosure - Balance Sheet Details</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureFairValueMeasurements" id="DisclosureFairValueMeasurements">
        <link:definition>10401 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureLeases" id="DisclosureLeases">
        <link:definition>10501 - Disclosure - Leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessCombinations" id="DisclosureBusinessCombinations">
        <link:definition>10601 - Disclosure - Business Combinations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIntangibleAssetsAndGoodwill" id="DisclosureIntangibleAssetsAndGoodwill">
        <link:definition>10701 - Disclosure - Intangible Assets and Goodwill</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureStockBasedCompensation" id="DisclosureStockBasedCompensation">
        <link:definition>10901 - Disclosure - Stock-Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIncomeTaxes" id="DisclosureIncomeTaxes">
        <link:definition>11001 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureEmployeeBenefits" id="DisclosureEmployeeBenefits">
        <link:definition>11101 - Disclosure - Employee Benefits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureCommitmentsAndContingencies" id="DisclosureCommitmentsAndContingencies">
        <link:definition>11201 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessSegmentInformation" id="DisclosureBusinessSegmentInformation">
        <link:definition>11301 - Disclosure - Business Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSelectedQuarterlyFinancialInformationUnaudited" id="DisclosureSelectedQuarterlyFinancialInformationUnaudited">
        <link:definition>11401 - Disclosure - Selected Quarterly Financial Information (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSubsequentEvents" id="DisclosureSubsequentEvents">
        <link:definition>11501 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies" id="DisclosureSummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>20202 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables" id="DisclosureSummaryOfSignificantAccountingPoliciesTables">
        <link:definition>30203 - Disclosure - Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBalanceSheetDetailsTables" id="DisclosureBalanceSheetDetailsTables">
        <link:definition>30303 - Disclosure - Balance Sheet Details (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureFairValueMeasurementsTables" id="DisclosureFairValueMeasurementsTables">
        <link:definition>30403 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureLeasesTables" id="DisclosureLeasesTables">
        <link:definition>30503 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessCombinationsTables" id="DisclosureBusinessCombinationsTables">
        <link:definition>30603 - Disclosure - Business Combinations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIntangibleAssetsAndGoodwillTables" id="DisclosureIntangibleAssetsAndGoodwillTables">
        <link:definition>30703 - Disclosure - Intangible Assets and Goodwill (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureRevenueFromContractsWithCustomersTables" id="DisclosureRevenueFromContractsWithCustomersTables">
        <link:definition>30803 - Disclosure - Revenue from Contracts with Customers (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureStockBasedCompensationTables" id="DisclosureStockBasedCompensationTables">
        <link:definition>30903 - Disclosure - Stock-Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIncomeTaxesTables" id="DisclosureIncomeTaxesTables">
        <link:definition>31003 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureCommitmentsAndContingenciesTables" id="DisclosureCommitmentsAndContingenciesTables">
        <link:definition>31203 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessSegmentInformationTables" id="DisclosureBusinessSegmentInformationTables">
        <link:definition>31303 - Disclosure - Business Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSelectedQuarterlyFinancialInformationUnauditedTables" id="DisclosureSelectedQuarterlyFinancialInformationUnauditedTables">
        <link:definition>31403 - Disclosure - Selected Quarterly Financial Information (Unaudited) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureOrganizationAndBasisOfPresentationLiquidityDetails" id="DisclosureOrganizationAndBasisOfPresentationLiquidityDetails">
        <link:definition>40101 - Disclosure - Organization and Basis of Presentation - Liquidity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureOrganizationAndBasisOfPresentationOtherDetails" id="DisclosureOrganizationAndBasisOfPresentationOtherDetails">
        <link:definition>40102 - Disclosure - Organization and Basis of Presentation - Other - (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSummaryOfSignificantAccountingPoliciesAntidilutiveSecuritiesDetails" id="DisclosureSummaryOfSignificantAccountingPoliciesAntidilutiveSecuritiesDetails">
        <link:definition>40202 - Disclosure - Summary of Significant Accounting Policies - Antidilutive Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureSummaryOfSignificantAccountingPoliciesLeasesDetails" id="DisclosureSummaryOfSignificantAccountingPoliciesLeasesDetails">
        <link:definition>40203 - Disclosure - Summary of Significant Accounting Policies - Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureFairValueMeasurementsTransfersDetails" id="DisclosureFairValueMeasurementsTransfersDetails">
        <link:definition>40402 - Disclosure - Fair Value Measurements - Transfers (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureLeasesTermsDetails" id="DisclosureLeasesTermsDetails">
        <link:definition>40501 - Disclosure - Leases - Terms (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureLeasesLeasesDetailsDetails" id="DisclosureLeasesLeasesDetailsDetails">
        <link:definition>40502 - Disclosure - Leases - Leases Details (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureLeasesLeaseTermAndDiscountRateAndCashFlowInformationDetails" id="DisclosureLeasesLeaseTermAndDiscountRateAndCashFlowInformationDetails">
        <link:definition>40505 - Disclosure - Leases - Lease Term And Discount Rate And Cash Flow Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessCombinationsRevenueAndLossDetails" id="DisclosureBusinessCombinationsRevenueAndLossDetails">
        <link:definition>40603 - Disclosure - Business Combinations - Revenue and Loss (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessCombinationsProFormaDetails" id="DisclosureBusinessCombinationsProFormaDetails">
        <link:definition>40605 - Disclosure - Business Combinations - Pro Forma (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureRevenueFromContractsWithCustomersDisaggregationOfRevenueDetails" id="DisclosureRevenueFromContractsWithCustomersDisaggregationOfRevenueDetails">
        <link:definition>40801 - Disclosure - Revenue from Contracts with Customers - Disaggregation of Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureRevenueFromContractsWithCustomersOtherDetails" id="DisclosureRevenueFromContractsWithCustomersOtherDetails">
        <link:definition>40802 - Disclosure - Revenue from Contracts with Customers - Other (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureStockBasedCompensationPlanInformationDetails" id="DisclosureStockBasedCompensationPlanInformationDetails">
        <link:definition>40901 - Disclosure - Stock-Based Compensation - Plan Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureStockBasedCompensationStockOptionActivityDetails" id="DisclosureStockBasedCompensationStockOptionActivityDetails">
        <link:definition>40902 - Disclosure - Stock-Based Compensation - Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureStockBasedCompensationFairValueAssumptionsDetails" id="DisclosureStockBasedCompensationFairValueAssumptionsDetails">
        <link:definition>40903 - Disclosure - Stock-Based Compensation - Fair Value Assumptions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureStockBasedCompensationRestrictedStockUnitsDetails" id="DisclosureStockBasedCompensationRestrictedStockUnitsDetails">
        <link:definition>40904 - Disclosure - Stock-Based Compensation - Restricted Stock Units (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureStockBasedCompensationCashSettledStockOptionsDetails" id="DisclosureStockBasedCompensationCashSettledStockOptionsDetails">
        <link:definition>40905 - Disclosure - Stock-Based Compensation - Cash-Settled Stock Options (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureStockBasedCompensationAllocationOfExpenseDetails" id="DisclosureStockBasedCompensationAllocationOfExpenseDetails">
        <link:definition>40906 - Disclosure - Stock-Based Compensation - Allocation of Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIncomeTaxesNetOperatingLossCarryforwardsDetails" id="DisclosureIncomeTaxesNetOperatingLossCarryforwardsDetails">
        <link:definition>41002 - Disclosure - Income Taxes - Net Operating Loss Carryforwards (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIncomeTaxesDoseNetOperatingLossCarryforwardsAndTaxCreditsDetails" id="DisclosureIncomeTaxesDoseNetOperatingLossCarryforwardsAndTaxCreditsDetails">
        <link:definition>41004 - Disclosure - Income Taxes - DOSE Net Operating Loss Carryforwards and Tax Credits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIncomeTaxesAvedroNetOperatingLossCarryforwardsAndTaxCreditsDetails" id="DisclosureIncomeTaxesAvedroNetOperatingLossCarryforwardsAndTaxCreditsDetails">
        <link:definition>41005 - Disclosure - Income Taxes - Avedro Net Operating Loss Carryforwards and Tax Credits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureIncomeTaxesUnrecognizedTaxBenefitsDetails" id="DisclosureIncomeTaxesUnrecognizedTaxBenefitsDetails">
        <link:definition>41006 - Disclosure - Income Taxes - Unrecognized Tax Benefits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureEmployeeBenefitsDetails" id="DisclosureEmployeeBenefitsDetails">
        <link:definition>41101 - Disclosure - Employee Benefits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureCommitmentsAndContingenciesOtherDetails" id="DisclosureCommitmentsAndContingenciesOtherDetails">
        <link:definition>41201 - Disclosure - Commitments and Contingencies - Other (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureCommitmentsAndContingenciesRestructuringDetails" id="DisclosureCommitmentsAndContingenciesRestructuringDetails">
        <link:definition>41202 - Disclosure - Commitments and Contingencies - Restructuring (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureBusinessSegmentInformationDetails" id="DisclosureBusinessSegmentInformationDetails">
        <link:definition>41301 - Disclosure - Business Segment Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.glaukos.com/role/DisclosureRevenueFromContractsWithCustomers" id="DisclosureRevenueFromContractsWithCustomers">
        <link:definition>10801 - Disclosure - Revenue from Contracts with Customers</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gkos-20191231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gkos-20191231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="gkos-20191231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:type="simple" xlink:href="gkos-20191231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links, all" />
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2019-01-31" schemaLocation="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd" />
  <import namespace="http://fasb.org/us-gaap/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd" xmlns="http://www.w3.org/2001/XMLSchema" />
  <import namespace="http://xbrl.sec.gov/country/2017-01-31" schemaLocation="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd" xmlns="http://www.w3.org/2001/XMLSchema" />
  <import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" xmlns="http://www.w3.org/2001/XMLSchema" />
  <import namespace="http://fasb.org/srt/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd" xmlns="http://www.w3.org/2001/XMLSchema" />
  <xsd:element abstract="true" id="gkos_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <element id="gkos_DepositAssetsAndOtherAssetsNoncurrent" name="DepositAssetsAndOtherAssetsNoncurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_InterestAndOtherExpenseNet" name="InterestAndOtherExpenseNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_IncreaseDecreaseInPrepaidExpenseAndOtherCurrentAssets" name="IncreaseDecreaseInPrepaidExpenseAndOtherCurrentAssets" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ReductionOfLiabilityUponVestingOfStockOptionsPreviouslyExercisedForUnvestedStock" name="ReductionOfLiabilityUponVestingOfStockOptionsPreviouslyExercisedForUnvestedStock" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_DoseMedicalCorporationMember" name="DoseMedicalCorporationMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_PaymentToAcquireAssetsOfRelatedParty" name="PaymentToAcquireAssetsOfRelatedParty" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BalanceSheetDetailsAbstract" name="BalanceSheetDetailsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ComputerEquipmentAndSoftwareMember" name="ComputerEquipmentAndSoftwareMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAge50OrLessAmount" name="DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAge50OrLessAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeOverAge50Amount" name="DefinedContributionPlanMaximumAnnualContributionsPerEmployeeOverAge50Amount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_StockBasedCompensationPlan2001Member" name="StockBasedCompensationPlan2001Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_StockBasedCompensationPlan2011Member" name="StockBasedCompensationPlan2011Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ShareBasedCompensationNumberOfPlans" name="ShareBasedCompensationNumberOfPlans" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentageOnFirstAnniversaryDateOfGrant" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentageOnFirstAnniversaryDateOfGrant" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRemainingVestingPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRemainingVestingPeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_EmployeeAndNonemployeeStockOptionMember" name="EmployeeAndNonemployeeStockOptionMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_EmployeeStockPurchasePlan2015Member" name="EmployeeStockPurchasePlan2015Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_GMPVisionSolutionsAndRelatedPartyMember" name="GMPVisionSolutionsAndRelatedPartyMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BuyOutAgreementWithGmpSolutionsInc.Member" name="BuyOutAgreementWithGmpSolutionsInc.Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_OtherCommitmentObligationAmount" name="OtherCommitmentObligationAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_OtherCommitmentObligationRequiredMinimumAnnualPaymentBasedOnSales" name="OtherCommitmentObligationRequiredMinimumAnnualPaymentBasedOnSales" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_StockBasedCompensationPlan2015Member" name="StockBasedCompensationPlan2015Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AccruedLiabilitiesAndEmployeeRelatedLiabilitiesCurrent" name="AccruedLiabilitiesAndEmployeeRelatedLiabilitiesCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NetWorkingCapital" name="NetWorkingCapital" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LongLivedAssetsAbstract" name="LongLivedAssetsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ScheduleOfEquityTable" name="ScheduleOfEquityTable" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_EquityLineItems" name="EquityLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AgreementWithRegentsOfUniversityOfCaliforniaMember" name="AgreementWithRegentsOfUniversityOfCaliforniaMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ScheduleOfCommonStockReservedForFutureIssuanceTableTextBlock" name="ScheduleOfCommonStockReservedForFutureIssuanceTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_FacilitiesLeaseMember" name="FacilitiesLeaseMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ForeignSubsidiariesOfficeLeasesMember" name="ForeignSubsidiariesOfficeLeasesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_CapitalExpenditure" name="CapitalExpenditure" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedRemainingVestingPeriodForRecognition1" name="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedRemainingVestingPeriodForRecognition1" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_InvestmentMaturityPeriod" name="InvestmentMaturityPeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_EmployeeStockPurchasePlanMaximumEmployeeContributionsAsPercentageOfEarnings" name="EmployeeStockPurchasePlanMaximumEmployeeContributionsAsPercentageOfEarnings" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_EmployeeStockPurchasePlanPurchasePriceOfSharesAsPercentageOfLowerOfStockSMarketValueOnOfferingDateOrPurchaseDate" name="EmployeeStockPurchasePlanPurchasePriceOfSharesAsPercentageOfLowerOfStockSMarketValueOnOfferingDateOrPurchaseDate" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_OtherCommitmentObligationPayments" name="OtherCommitmentObligationPayments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LesseeLeasingArrangementsOperatingLeasesNumberOfRenewalPeriods" name="LesseeLeasingArrangementsOperatingLeasesNumberOfRenewalPeriods" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LesseeLeasingArrangementsOperatingLeasesTenantImprovementAllowance" name="LesseeLeasingArrangementsOperatingLeasesTenantImprovementAllowance" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AggregateStockBasedCompensationPlansMember" name="AggregateStockBasedCompensationPlansMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_IncrementalCommonSharesAttributableToDilutiveEffectOfCommonStockOptions" name="IncrementalCommonSharesAttributableToDilutiveEffectOfCommonStockOptions" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_IncrementalCommonSharesAttributableToDilutiveEffectOfEmployeeStockPurchasePlan" name="IncrementalCommonSharesAttributableToDilutiveEffectOfEmployeeStockPurchasePlan" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_FairValueAssetsAndLiabilitiesLevel1Level2AndLevel3TransfersAmount" name="FairValueAssetsAndLiabilitiesLevel1Level2AndLevel3TransfersAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_StandardWarrantyPeriod" name="StandardWarrantyPeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_IntangibleAssetsAbstract" name="IntangibleAssetsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_DefinedContributionPlanEmployersMatchingContributionVestingPeriod" name="DefinedContributionPlanEmployersMatchingContributionVestingPeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_MaximumDefinedContributionPlanEmployerMatchingContributionPercent" name="MaximumDefinedContributionPlanEmployerMatchingContributionPercent" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NumberOfAdjacentFacilitiesRented" name="NumberOfAdjacentFacilitiesRented" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_DomesticOfficeLeasesMember" name="DomesticOfficeLeasesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ShareBasedCompensationAwardTrancheFourMember" name="ShareBasedCompensationAwardTrancheFourMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsAmount" name="EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_TaxCutsAndJobsAct2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit" name="TaxCutsAndJobsAct2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NumberOfPerformanceObligationsForMajorityOfContractsWithCustomers" name="NumberOfPerformanceObligationsForMajorityOfContractsWithCustomers" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_PeriodForPaymentOnInvoiceTerms" name="PeriodForPaymentOnInvoiceTerms" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_RevenueFromContractWithCustomerShippingAndHandlingCostPolicyTextBlock" name="RevenueFromContractWithCustomerShippingAndHandlingCostPolicyTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_DeferredRentAndOtherLiabilitiesAdjustment" name="DeferredRentAndOtherLiabilitiesAdjustment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_PurchaseObligationDueAfterTwelveMonths" name="PurchaseObligationDueAfterTwelveMonths" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NumberOfMonthsOfLeaseTermForAdjustmentsOfLettersOfCreditBalanceOutstandingToBegin" name="NumberOfMonthsOfLeaseTermForAdjustmentsOfLettersOfCreditBalanceOutstandingToBegin" nillable="true" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_FrequencyOfAdjustmentsOfLettersOfCreditBalanceOutstanding" name="FrequencyOfAdjustmentsOfLettersOfCreditBalanceOutstanding" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AdjustmentPercentageOfLettersOfCreditBalanceOutstanding" name="AdjustmentPercentageOfLettersOfCreditBalanceOutstanding" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_MinimalAmountOfLettersOfCreditBalanceOutstandingAfterAdjustments" name="MinimalAmountOfLettersOfCreditBalanceOutstandingAfterAdjustments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AlisoViejoCaliforniaFacilityMember" name="AlisoViejoCaliforniaFacilityMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NumberOfPropertiesLeased" name="NumberOfPropertiesLeased" nillable="true" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NumberOfBuildingsLeased" name="NumberOfBuildingsLeased" nillable="true" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NetOperatingLossCarryforwardPercentOfUtilizationForNoExpirationDate" name="NetOperatingLossCarryforwardPercentOfUtilizationForNoExpirationDate" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_PaymentsForInvestmentInCompanyOwnedLifeInsurancePolicy" name="PaymentsForInvestmentInCompanyOwnedLifeInsurancePolicy" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_SoftwareCostsPolicyTextBlock" name="SoftwareCostsPolicyTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LossContingencyNumberOfPatentInfringements" name="LossContingencyNumberOfPatentInfringements" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AmortizationOperatingLeaseRightOfUseAsset" name="AmortizationOperatingLeaseRightOfUseAsset" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LesseeOperatingLeaseOptionToExtendValue" name="LesseeOperatingLeaseOptionToExtendValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LesseeOperatingLeaseRemainingLeaseTerm" name="LesseeOperatingLeaseRemainingLeaseTerm" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LesseeOperatingLeasePeriodForLeaseTermination" name="LesseeOperatingLeasePeriodForLeaseTermination" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LossContingencyNumberOfNewPetitionsFiled" name="LossContingencyNumberOfNewPetitionsFiled" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LeaseRightOfUseAsset" name="LeaseRightOfUseAsset" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_FinanceAndOperatingLeaseLiability" name="FinanceAndOperatingLeaseLiability" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationExpensedInProcessResearchAndDevelopmentExpense" name="BusinessCombinationExpensedInProcessResearchAndDevelopmentExpense" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_SharesReceivedInConnectionWithMergerForEachShareOfCompanyOwnedStock" name="SharesReceivedInConnectionWithMergerForEachShareOfCompanyOwnedStock" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_PeriodForRegulatoryApprovalForAdditionalConsideration" name="PeriodForRegulatoryApprovalForAdditionalConsideration" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_FutureAdditionalConsiderationAmountForRegulatoryApproval" name="FutureAdditionalConsiderationAmountForRegulatoryApproval" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_FutureAdditionalConsiderationAmountForCertainNetSalesMilestones" name="FutureAdditionalConsiderationAmountForCertainNetSalesMilestones" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BuyoutOfAdditionalConsiderationAmountForRegulatoryApprovalAndCertainNetSalesMilestones" name="BuyoutOfAdditionalConsiderationAmountForRegulatoryApprovalAndCertainNetSalesMilestones" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LesseeFinancingLeaseOptionToExtendValue" name="LesseeFinancingLeaseOptionToExtendValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_PeriodForEuropeanMedicinesAgencyApprovalForAdditionalConsideration" name="PeriodForEuropeanMedicinesAgencyApprovalForAdditionalConsideration" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_FutureAdditionalConsiderationQuarterlyRoyaltyRateOfNetSales" name="FutureAdditionalConsiderationQuarterlyRoyaltyRateOfNetSales" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_FutureAdditionalConsiderationAmountForEuropeanMedicinesAgencyApproval" name="FutureAdditionalConsiderationAmountForEuropeanMedicinesAgencyApproval" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_PeriodForQuarterlyRoyaltyRatePayments" name="PeriodForQuarterlyRoyaltyRatePayments" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LossContingencyNumberOfLawsuitsThatNameAvedroAndEachMemberOfAvedroBoardOfDirectors" name="LossContingencyNumberOfLawsuitsThatNameAvedroAndEachMemberOfAvedroBoardOfDirectors" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_PatentLitigationMember" name="PatentLitigationMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LicensingArrangementWithIntratusIncMember" name="LicensingArrangementWithIntratusIncMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_PaymentToAcquireAssetNonRelatedParty" name="PaymentToAcquireAssetNonRelatedParty" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationIntangibleAssetAllocationTableTextBlock" name="BusinessCombinationIntangibleAssetAllocationTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessAcquisitionConsiderationInformationTableTextBlock" name="BusinessAcquisitionConsiderationInformationTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AvedroInc.Member" name="AvedroInc.Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedLiabilities" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedLiabilities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesDeferredRevenue" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesDeferredRevenue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_GlaucomaMember" name="GlaucomaMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_CornealHealthMember" name="CornealHealthMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_RepaymentsOfAcquiredDebt" name="RepaymentsOfAcquiredDebt" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationForAcquisitionRequisiteServicePeriodRecognitionValue" name="AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationForAcquisitionRequisiteServicePeriodRecognitionValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LesseeOperatingAndFinanceLeaseLiabilityMaturityTableTextBlock" name="LesseeOperatingAndFinanceLeaseLiabilityMaturityTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ScheduleOfOperatingAndFinanceLeaseAssetsAndLiabilitiesTableTextBlock" name="ScheduleOfOperatingAndFinanceLeaseAssetsAndLiabilitiesTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LesseeOperatingAndFinanceLeaseWeightedAverageLeaseTermAndDiscountRateTableTextBlock" name="LesseeOperatingAndFinanceLeaseWeightedAverageLeaseTermAndDiscountRateTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_OperatingAndFinanceLeaseSupplementalCashFlowTableTextBlock" name="OperatingAndFinanceLeaseSupplementalCashFlowTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_LeaseDisclosureTextBlock" name="LeaseDisclosureTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardCashSettledStockOptionsTableTextBlock" name="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardCashSettledStockOptionsTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NumberOfBusinessActivities" name="NumberOfBusinessActivities" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AccruedLiabilityForCashSettledOptionsCurrentLiabilities" name="AccruedLiabilityForCashSettledOptionsCurrentLiabilities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_FinanceLeaseDeferredLeasingInventivesCosts" name="FinanceLeaseDeferredLeasingInventivesCosts" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NumberOfOtherIrrevocableLettersOfCreditOutstanding" name="NumberOfOtherIrrevocableLettersOfCreditOutstanding" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_RestrictedCashPledgedForOfficeLeaseAgreement" name="RestrictedCashPledgedForOfficeLeaseAgreement" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_RestrictedCashPledgedForCreditCardProgram" name="RestrictedCashPledgedForCreditCardProgram" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_RestrictedCashPledgedForLetterOfCredit" name="RestrictedCashPledgedForLetterOfCredit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BurlingtonMassachusettsFacilityMember" name="BurlingtonMassachusettsFacilityMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_WalthamMassachusettsFacilityMember" name="WalthamMassachusettsFacilityMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_RestructuringHeadcountReductionNumber" name="RestructuringHeadcountReductionNumber" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_CashSettledStockOptionsLiabilityFairValueDisclosure" name="CashSettledStockOptionsLiabilityFairValueDisclosure" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_CashSettledStockOptionMember" name="CashSettledStockOptionMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationConsiderationTransferredStockIssuedToReplaceAcquireeWarrants" name="BusinessCombinationConsiderationTransferredStockIssuedToReplaceAcquireeWarrants" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationConsiderationTransferredStockIssuedForReplacementAwardsAttributableToPreCombinationServices" name="BusinessCombinationConsiderationTransferredStockIssuedForReplacementAwardsAttributableToPreCombinationServices" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableExchangeRatio" name="BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableExchangeRatio" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableForRightsToReceiveSharesOfCompany" name="BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableForRightsToReceiveSharesOfCompany" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationIncreaseInRevenueFromAdoptionOfAsc606" name="BusinessCombinationIncreaseInRevenueFromAdoptionOfAsc606" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationReleaseOfDeferredTaxLiabilitiesAssumedInAcquisition" name="BusinessCombinationReleaseOfDeferredTaxLiabilitiesAssumedInAcquisition" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_IntangibleAssetsGrossIncludingGoodwill" name="IntangibleAssetsGrossIncludingGoodwill" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AssumptionForFairValueOfIntangibleAssetsDiscountRate" name="AssumptionForFairValueOfIntangibleAssetsDiscountRate" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BuyoutAgreementValueOfSaleConsiderationRequiredToBePaid" name="BuyoutAgreementValueOfSaleConsiderationRequiredToBePaid" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionReplacementAwardsGrantsInPeriodGross" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionReplacementAwardsGrantsInPeriodGross" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionReplacementAwardsGrantsInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionReplacementAwardsGrantsInPeriodWeightedAverageExercisePrice" nillable="true" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantReplacementAwardsInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantReplacementAwardsInPeriod" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantReplacementAwardsInPeriodWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantReplacementAwardsInPeriodWeightedAverageGrantDateFairValue" nillable="true" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ShareBasedCompensationAwardTimeVestingMember" name="ShareBasedCompensationAwardTimeVestingMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationConsiderationTransferredStockIssuedForReplacementAwardsAttributableToPostCombinationServices" name="BusinessCombinationConsiderationTransferredStockIssuedForReplacementAwardsAttributableToPostCombinationServices" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesDeferredTaxLiability" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesDeferredTaxLiability" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AccountingStandardUpdatesImplementationIncomeTaxExpenseBenefit" name="AccountingStandardUpdatesImplementationIncomeTaxExpenseBenefit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_DeferredTaxAssetsTaxDeferredExpenseLeaseLiability" name="DeferredTaxAssetsTaxDeferredExpenseLeaseLiability" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_DeferredTaxLiabilitiesDeferredExpenseLeaseAssets" name="DeferredTaxLiabilitiesDeferredExpenseLeaseAssets" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_TaxCreditCarryforwardNotSubjectToExpirationAmount" name="TaxCreditCarryforwardNotSubjectToExpirationAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_TaxCreditCarryForwardSubjectToExpirationAmount" name="TaxCreditCarryForwardSubjectToExpirationAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_ChangeInDeferredIncomeTaxExpenseBenefit" name="ChangeInDeferredIncomeTaxExpenseBenefit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NoncashOrPartNoncashAcquisitionEquityIssuedAndAssumed" name="NoncashOrPartNoncashAcquisitionEquityIssuedAndAssumed" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_TaxCreditCarryForwardSubjectToExpirationUnutilizedAmount" name="TaxCreditCarryForwardSubjectToExpirationUnutilizedAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpirationUnutilizedAmount" name="DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpirationUnutilizedAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationRemovalOfTaxBenefit" name="BusinessCombinationRemovalOfTaxBenefit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_StockOptionPlanExpenses" name="StockOptionPlanExpenses" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_IncrementalCommonSharesAttributableToUnvestedRestrictedStockUnits" name="IncrementalCommonSharesAttributableToUnvestedRestrictedStockUnits" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_NumberOfVotesPerCommonShare" name="NumberOfVotesPerCommonShare" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationStepUpFairValueOfInventoryAcquiredInAcquisition" name="BusinessCombinationStepUpFairValueOfInventoryAcquiredInAcquisition" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationProFormaRemovalOfIntegrationRelatedCosts" name="BusinessCombinationProFormaRemovalOfIntegrationRelatedCosts" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationProFormaInclusionOfIntegrationRelatedCosts" name="BusinessCombinationProFormaInclusionOfIntegrationRelatedCosts" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_BusinessCombinationProFormaInclusionOfAmortizationOfStepUpFairValueOfInventoryAcquiredInAcquisition" name="BusinessCombinationProFormaInclusionOfAmortizationOfStepUpFairValueOfInventoryAcquiredInAcquisition" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="gkos_AmortizationOfStepUpFairValueOfInventoryAcquiredInAcquisition" name="AmortizationOfStepUpFairValueOfInventoryAcquiredInAcquisition" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
</xsd:schema>
