| CH581986A5
              (OSRAM)
            
            * | 1974-08-23 | 1976-11-30 | Bracher Damiel |  | 
        
          | US4065208A
              (en)
            
            * | 1974-10-29 | 1977-12-27 | Currey Thomas A | Ophthalmoscope | 
        
          | US4056310A
              (en)
            
            * | 1975-02-14 | 1977-11-01 | Olympus Optical Co., Ltd. | Method and device for ophthalmoscopy | 
        
          | JPS51115787U
              (OSRAM)
            
            * | 1975-03-17 | 1976-09-20 |  |  | 
        
          | US4033679A
              (en)
            
            * | 1975-12-10 | 1977-07-05 | Walter Sussman | Gonioscope | 
        
          | US4134647A
              (en)
            
            * | 1977-03-22 | 1979-01-16 | Ramos Caldera Arturo J | Contact lens for examining the interior of the eye | 
        
          | DE3040214C2
              (de)
            
            * | 1980-10-24 | 1983-07-28 | Optische Werke G. Rodenstock, 8000 München | Doppelspiegel-Kontaktglas | 
        
          | DE3205107A1
              (de)
            
            * | 1982-02-12 | 1983-08-18 | Wolfdietrich Dr. 6020 Innsbruck Steinhuber | Ophthalmoskopisches geraet | 
        
          | US4573778A
              (en)
            
            * | 1983-03-16 | 1986-03-04 | Boston University | Aqueous fluorophotometer | 
        
          | US4753526A
              (en)
            
            * | 1984-03-16 | 1988-06-28 | The Trustees Of Columbia University In The City Of New York | Ophthalmic image stabilization system | 
        
          | US4568157A
              (en)
            
            * | 1984-07-11 | 1986-02-04 | Board Of Regents, The University Of Texas System | Goniotomy lens | 
        
          | US4728183A
              (en)
            
            * | 1986-10-01 | 1988-03-01 | Ocular Instruments, Inc. | Ophthalmic lens for observing the fundus of the eye | 
        
          | DE3919985A1
              (de)
            
            * | 1989-06-19 | 1990-12-20 | Rodenstock Instr | Kontaktglas | 
        
          | US5719700A
              (en)
            
            * | 1991-10-11 | 1998-02-17 | L'oreal | Apparatus for in vivo observation of the microscopic structure of the skin or of a similar tissue | 
        
          | US5309187A
              (en)
            
            * | 1992-03-18 | 1994-05-03 | Ocular Instruments, Inc. | High magnification ophthalmic lens | 
        
          | US5359372A
              (en)
            
            * | 1993-02-23 | 1994-10-25 | Tomey Corp. | Contact lens for intraocular observation | 
        
          | US5589896A
              (en)
            
            * | 1994-10-26 | 1996-12-31 | Ocular Instruments, Inc. | Adjustable indirect ophthalmoscopy lens | 
        
          | US5623323A
              (en)
            
            * | 1994-10-26 | 1997-04-22 | Ocular Instruments, Inc. | Extra wide field ophthalmic lens | 
        
          | US5537164A
              (en)
            
            * | 1994-12-20 | 1996-07-16 | Smith; Alan D. | Retroilluminating indirect gonioprism | 
        
          | DE69722674T2
              (de)
            
            * | 1996-10-24 | 2004-04-29 | Volk Optical, Inc., Mentor | Beobachtungsvorrichtung für die augenheilkunde | 
        
          | US6120147A
              (en)
            
            * | 1999-03-17 | 2000-09-19 | Dutch Ophthalmic Research Center International Bv | Vitrectomy lens | 
        
          | US6976758B2
              (en)
            
            * | 2003-04-04 | 2005-12-20 | Ocular Instruments, Inc. | Gonioscopy lens | 
        
          | US6942343B2
              (en)
            
            * | 2003-04-07 | 2005-09-13 | Arkadiy Farberov | Optical device for intraocular observation | 
        
          | WO2006002392A2
              (en)
            
            * | 2004-06-24 | 2006-01-05 | Optimedica Corporation | Ophthalmic lens assembly utilizing replaceable contact element | 
        
          | US7419262B2
              (en)
            
            * | 2006-08-18 | 2008-09-02 | Ocular Instruments, Inc. | Direct view gonio lens | 
        
          | US7441899B2
              (en)
            
            * | 2007-01-05 | 2008-10-28 | Eisenberg Elliot S | Panretinal laser fundus contact lens | 
        
          | US8070290B2
              (en)
            
            * | 2008-12-17 | 2011-12-06 | Glaukos Corporation | Gonioscope for improved viewing | 
        
          | DE102009006024B4
              (de)
            
            * | 2009-01-25 | 2011-03-10 | Vr Vision Research Gmbh | Kontaktglas zur Augenuntersuchung und Laserbehandlung | 
        
          | USD645490S1
              (en) | 2009-12-16 | 2011-09-20 | Glaukos Corporation | Gonioscopic system including an optical element attachment | 
        
          | USD645489S1
              (en) | 2009-12-16 | 2011-09-20 | Glaukos Corporation | Gonioscopic system including an optical element attachment | 
        
          | WO2012058138A1
              (en) | 2010-10-26 | 2012-05-03 | Alcon Research, Ltd. | Ophthalmoscopic surgical contact lens | 
        
          | KR101400982B1
              (ko)
            
            * | 2012-07-13 | 2014-05-30 | 주식회사 루트로닉 | 컨택트 렌즈 어셈블리 및 이를 갖는 안과용 치료장치 | 
        
          | US10499809B2
              (en) | 2015-03-20 | 2019-12-10 | Glaukos Corporation | Gonioscopic devices | 
        
          | US10674906B2
              (en) | 2017-02-24 | 2020-06-09 | Glaukos Corporation | Gonioscopes | 
        
          | USD833008S1
              (en) | 2017-02-27 | 2018-11-06 | Glaukos Corporation | Gonioscope |