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v3.25.1

Summary of Significant Accounting Policies - Additional Information (Details) | 3 Months Ended
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Mar. 31, 2025
Summary of Significant Accounting Policies |
ESPP, period for recognition of expense | 6 months

X
- Definition Period over which compensation expense is recognized prior to the purchase date. + References No definition available. + Details
Name: | ocul_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationExpenseWithholdingPeriodPriorToPurchaseDate
Namespace Prefix: | ocul_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration