-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001140361-10-037832.txt : 20100917
<SEC-HEADER>0001140361-10-037832.hdr.sgml : 20100917
<ACCEPTANCE-DATETIME>20100917174721
ACCESSION NUMBER:		0001140361-10-037832
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100915
FILED AS OF DATE:		20100917
DATE AS OF CHANGE:		20100917

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IRIDEX CORP
		CENTRAL INDEX KEY:			0001006045
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS [3845]
		IRS NUMBER:				770210467
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1230

	BUSINESS ADDRESS:	
		STREET 1:		1212 TERRA BELLA AVE
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043
		BUSINESS PHONE:		6509404700

	MAIL ADDRESS:	
		STREET 1:		1212 TERRA BELLA AVENUE
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BlueLine Partners, L.L.C.
		CENTRAL INDEX KEY:			0001311443
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27598
		FILM NUMBER:		101079067

	BUSINESS ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526
		BUSINESS PHONE:		925-648-2085

	MAIL ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BlueLine Capital Partners, L.P.
		CENTRAL INDEX KEY:			0001338149
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27598
		FILM NUMBER:		101079071

	BUSINESS ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526
		BUSINESS PHONE:		925-648-2085

	MAIL ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BlueLine Capital Partners III, LP
		CENTRAL INDEX KEY:			0001411986
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27598
		FILM NUMBER:		101079069

	BUSINESS ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526
		BUSINESS PHONE:		(925) 988-0285

	MAIL ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BlueLine Partners II, LLC
		CENTRAL INDEX KEY:			0001411987
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27598
		FILM NUMBER:		101079070

	BUSINESS ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526
		BUSINESS PHONE:		(925) 988-0285

	MAIL ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BlueLine Catalyst Fund IX, L.P.
		CENTRAL INDEX KEY:			0001460518
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27598
		FILM NUMBER:		101079068

	BUSINESS ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526
		BUSINESS PHONE:		925-236-9790

	MAIL ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BlueLine Capital Partners II, L.P.
		CENTRAL INDEX KEY:			0001460781
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27598
		FILM NUMBER:		101079072

	BUSINESS ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526
		BUSINESS PHONE:		925-236-9790

	MAIL ADDRESS:	
		STREET 1:		402 RAILROAD AVENUE
		STREET 2:		SUITE 201
		CITY:			DANVILLE
		STATE:			CA
		ZIP:			94526
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-09-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001006045</issuerCik>
        <issuerName>IRIDEX CORP</issuerName>
        <issuerTradingSymbol>IRIX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001460781</rptOwnerCik>
            <rptOwnerName>BlueLine Capital Partners II, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>319 DIABLO ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>STE 200</rptOwnerStreet2>
            <rptOwnerCity>DANVILLE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94526</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001338149</rptOwnerCik>
            <rptOwnerName>BlueLine Capital Partners, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>319 DIABLO ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>STE 200</rptOwnerStreet2>
            <rptOwnerCity>DANVILLE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94526</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001411987</rptOwnerCik>
            <rptOwnerName>BlueLine Partners II, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>319 DIABLO ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>STE 200</rptOwnerStreet2>
            <rptOwnerCity>DANVILLE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94526</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001411986</rptOwnerCik>
            <rptOwnerName>BlueLine Capital Partners III, LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>319 DIABLO ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>STE 200</rptOwnerStreet2>
            <rptOwnerCity>DANVILLE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94526</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001460518</rptOwnerCik>
            <rptOwnerName>BlueLine Catalyst Fund IX, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>319 DIABLO ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>STE 200</rptOwnerStreet2>
            <rptOwnerCity>DANVILLE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94526</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001311443</rptOwnerCik>
            <rptOwnerName>BlueLine Partners, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>319 DIABLO ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>STE 200</rptOwnerStreet2>
            <rptOwnerCity>DANVILLE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94526</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <transactionDate>
                <value>2010-09-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>8000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.80</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2491815</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <transactionDate>
                <value>2010-09-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5400</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.75</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2497215</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <transactionDate>
                <value>2010-09-17</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10885</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2508100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These securities were owned by BlueLine Capital Partners II, L.P.</footnote>
        <footnote id="F2">These securities were owned by BlueLine Capital Partners III, L.P.</footnote>
        <footnote id="F3">These securities were owned by BlueLine Catalyst Fund IX, L.P.</footnote>
    </footnotes>

    <remarks>Scott A. Shuda, by power of attorney for all other reporting persons</remarks>

    <ownerSignature>
        <signatureName>Scott A. Shuda</signatureName>
        <signatureDate>2010-09-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
