CA2177193A1 - Indirect Ophthalmoscopy Contact Lens Device with Compound Contact Lens Element - Google Patents

Indirect Ophthalmoscopy Contact Lens Device with Compound Contact Lens Element

Info

Publication number
CA2177193A1
CA2177193A1 CA2177193A CA2177193A CA2177193A1 CA 2177193 A1 CA2177193 A1 CA 2177193A1 CA 2177193 A CA2177193 A CA 2177193A CA 2177193 A CA2177193 A CA 2177193A CA 2177193 A1 CA2177193 A1 CA 2177193A1
Authority
CA
Canada
Prior art keywords
contact lens
refraction
index
lens
anterior
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2177193A
Other languages
French (fr)
Other versions
CA2177193C (en
Inventor
Donald A. Volk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volk Optical Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2177193A1 publication Critical patent/CA2177193A1/en
Application granted granted Critical
Publication of CA2177193C publication Critical patent/CA2177193C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • A61B3/125—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes with contact lenses

Abstract

An indirect ophthalmoscopy contact lens device includes a contact lens having a first posterior lens surface with a concave shape substantially corresponding to the shape of an average cornea and an image forming lens for collecting and focussing light exiting the patient's eye and entering the contact lens when in place on the patient's eye for forming an aerial image of the fundus of the patient's eye. The contact lens comprises a compound contact lens element including a posterior lens portion cemented to an anterior lens portion . The posterior lens portion includes the first posterior lens surface and a first anterior lens surface, and is made of a material having a first index of refraction and a first Abbe value. The anterior lens portion has a second posterior lens surface with a shape substantially matching a shape of the first anterior lens surface and a second anterior lens surface having a convex shape. The anterior lens portion is made of a material having a second index of refraction and a second Abbe value. At least one of the second index of refraction and the second Abbe value is different from the first index of refraction and the first Abbe value, respectively. The optical cement preferably has an index of refraction corresponding to the first or second index of refraction.
CA002177193A 1995-06-05 1996-05-23 Indirect ophthalmoscopy contact lens device with compound contact lens element Expired - Fee Related CA2177193C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08465641 US5523810C1 (en) 1995-06-05 1995-06-05 Indirect ophthalmoscopy contact lens device with compound contact lens element
US08/465,641 1995-06-05

Publications (2)

Publication Number Publication Date
CA2177193A1 true CA2177193A1 (en) 1996-12-06
CA2177193C CA2177193C (en) 1999-12-21

Family

ID=23848580

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002177193A Expired - Fee Related CA2177193C (en) 1995-06-05 1996-05-23 Indirect ophthalmoscopy contact lens device with compound contact lens element

Country Status (6)

Country Link
US (1) US5523810C1 (en)
EP (1) EP0750877B1 (en)
JP (1) JP3067648B2 (en)
CA (1) CA2177193C (en)
DE (1) DE69612239T2 (en)
ES (1) ES2155575T3 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6410010B1 (en) * 1992-10-13 2002-06-25 Board Of Regents, The University Of Texas System Recombinant P53 adenovirus compositions
EP0761613B1 (en) * 1995-09-07 2001-10-24 Ford Motor Company Method for heating and forming a glass sheet
US5805269A (en) * 1996-08-27 1998-09-08 Volk Optical, Inc. High magnification indirect ophthalmoscopy lens device
US5757464A (en) * 1996-08-29 1998-05-26 Volk Optical, Inc. Indirect ophthalmoscopy contact lens device with compound contact lens element
JP3346775B2 (en) * 1996-10-24 2002-11-18 フォルク オプティカル インコーポレイテッド Ophthalmoscope observation device
US5963301A (en) * 1997-10-22 1999-10-05 Volk Optical, Inc. Lense arrangement for vitreoretinal surgery
US6092898A (en) * 1998-07-06 2000-07-25 Johns Hopkins University Surgical contact lens, methods for viewing the interior of an eye and methods for manufacturing such lenses
US7244026B1 (en) 2002-10-18 2007-07-17 Volk Optical, Inc. Sterilizable ophthalmoscopy lens system
US7144111B1 (en) * 2002-10-18 2006-12-05 Ross Iii Denwood F Ophthalmoscopy lens system
US6942343B2 (en) * 2003-04-07 2005-09-13 Arkadiy Farberov Optical device for intraocular observation
EP1475033A1 (en) * 2003-05-05 2004-11-10 Universiteit Maastricht Device and method for performing measurements of the chemical composition of the anterior eye
US7338170B2 (en) * 2005-04-29 2008-03-04 Volk Optical Inc. Lens systems for vitreoretinal surgery
DE102005033746A1 (en) * 2005-07-15 2007-01-25 Schott Ag Compact lens for e.g. cell phone camera, has diffractive optical element imaging incident light, and refractive optical element provided as compound lens with lens elements having two indices of refraction, respectively
DE112007000242T5 (en) * 2006-01-26 2009-02-19 Volk Optical, Inc., Mentor Improved diagnostic ophthalmic lens made of a material with a particularly low dispersion
US7946706B2 (en) 2006-02-10 2011-05-24 Volk Optical Inc. Lens assembly for vitreoretinal surgery
US20070268460A1 (en) * 2006-05-22 2007-11-22 Clark Stephan R Lens assembly in an offset projection system
US8150241B2 (en) 2007-11-08 2012-04-03 Eugene Michael Kretkowski Baseboard heater security device
WO2012058138A1 (en) 2010-10-26 2012-05-03 Alcon Research, Ltd. Ophthalmoscopic surgical contact lens
US9642606B2 (en) 2012-06-27 2017-05-09 Camplex, Inc. Surgical visualization system
US9492065B2 (en) 2012-06-27 2016-11-15 Camplex, Inc. Surgical retractor with video cameras
WO2014189969A1 (en) 2013-05-21 2014-11-27 Camplex, Inc. Surgical visualization systems
EP3046458B1 (en) 2013-09-20 2020-10-21 Camplex, Inc. Surgical visualization systems
JP6521982B2 (en) 2013-09-20 2019-05-29 キャンプレックス インコーポレイテッド Surgical visualization system and display
US20150313465A1 (en) * 2014-05-02 2015-11-05 Ocular Instruments, Inc. Unreversed prism gonioscopy lens assembly
US10663760B2 (en) 2014-09-10 2020-05-26 Katena Products, Inc. Molded ophthalmic contact lens
US10353118B2 (en) 2014-09-10 2019-07-16 Katena Products, Inc. Molded ophthalmic lens with integral ring portion for examination or treatment of an eye
WO2016090336A1 (en) 2014-12-05 2016-06-09 Camplex, Inc. Surgical visualization systems and displays
US11154378B2 (en) 2015-03-25 2021-10-26 Camplex, Inc. Surgical visualization systems and displays
WO2017091704A1 (en) 2015-11-25 2017-06-01 Camplex, Inc. Surgical visualization systems and displays
WO2017142998A1 (en) * 2016-02-18 2017-08-24 Katena Products Inc. Molded ophthalmic lens
US10918455B2 (en) 2017-05-08 2021-02-16 Camplex, Inc. Variable light source
US10327634B2 (en) * 2017-09-08 2019-06-25 Arkadiy Farberov Ophthalmic lens doublet for ophthalmoscopy

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158677A (en) * 1960-12-19 1964-11-24 Pierre J B Lacomme Wide angle oculars
US4410245A (en) * 1979-05-24 1983-10-18 Koester Charles J Image stabilization method, and apparatus
CH647875A5 (en) * 1982-04-16 1985-02-15 Lasag Ag CONTACT LENS FOR EYE OBSERVATION AND TREATMENT.
FR2558715B1 (en) * 1984-01-30 1988-05-20 Lasag Ag CONTACT LENS FOR OBSERVATION AND TREATMENT OF THE EYE BY LIGHT IRRADIATION
US4750829A (en) * 1986-05-09 1988-06-14 Wise James B Iridotomy-sphincterotomy contact lens
US4728183A (en) * 1986-10-01 1988-03-01 Ocular Instruments, Inc. Ophthalmic lens for observing the fundus of the eye
US4768866A (en) * 1986-11-28 1988-09-06 Hughes Aircraft Company Optical magnifying system: 4× loupe
US5007729A (en) * 1989-10-27 1991-04-16 Ocular Instruments, Inc. Wide angle ophthalmic lens
US5200773A (en) * 1989-10-27 1993-04-06 Volk Donald A Diagnostic indirect ophthalmoscopy contact lens system
US5189450A (en) * 1991-05-21 1993-02-23 Ocular Instruments, Inc. High magnification ophthalmic lens
US5255025A (en) * 1991-10-15 1993-10-19 Volk Donald A Measurement apparatus for indirect ophthalmoscopy
US5309187A (en) * 1992-03-18 1994-05-03 Ocular Instruments, Inc. High magnification ophthalmic lens
JPH0686760A (en) * 1992-09-08 1994-03-29 Toomee:Kk Contact lens for intraocular observation

Also Published As

Publication number Publication date
DE69612239D1 (en) 2001-05-03
US5523810C1 (en) 2001-04-17
US5523810A (en) 1996-06-04
JPH0919407A (en) 1997-01-21
JP3067648B2 (en) 2000-07-17
EP0750877A1 (en) 1997-01-02
EP0750877B1 (en) 2001-03-28
DE69612239T2 (en) 2001-09-27
ES2155575T3 (en) 2001-05-16
CA2177193C (en) 1999-12-21

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20160524