WO1997042891A1 - Conoscopic system for real-time corneal topography - Google Patents
Conoscopic system for real-time corneal topography Download PDFInfo
- Publication number
- WO1997042891A1 WO1997042891A1 PCT/US1997/008083 US9708083W WO9742891A1 WO 1997042891 A1 WO1997042891 A1 WO 1997042891A1 US 9708083 W US9708083 W US 9708083W WO 9742891 A1 WO9742891 A1 WO 9742891A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conoscopic
- probe beam
- phase difference
- interference pattern
- topographer
- Prior art date
Links
- 238000012876 topography Methods 0.000 title description 6
- 238000005259 measurement Methods 0.000 claims abstract description 33
- 230000001427 coherent effect Effects 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000005286 illumination Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 50
- 239000013078 crystal Substances 0.000 claims description 48
- 210000004087 cornea Anatomy 0.000 claims description 46
- 239000000523 sample Substances 0.000 claims description 44
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- 239000000284 extract Substances 0.000 claims 1
- 238000001093 holography Methods 0.000 abstract description 13
- 238000000608 laser ablation Methods 0.000 abstract description 2
- 210000001508 eye Anatomy 0.000 description 30
- 238000002679 ablation Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 10
- 210000005252 bulbus oculi Anatomy 0.000 description 9
- 230000004438 eyesight Effects 0.000 description 9
- 238000000605 extraction Methods 0.000 description 8
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- 238000013459 approach Methods 0.000 description 5
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- 208000001491 myopia Diseases 0.000 description 4
- 230000004379 myopia Effects 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 4
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/255—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring radius of curvature
-
- 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
- A61B3/107—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F9/00802—Methods or devices for eye surgery using laser for photoablation
- A61F9/00804—Refractive treatments
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/0493—Special holograms not otherwise provided for, e.g. conoscopic, referenceless holography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00844—Feedback systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00855—Calibration of the laser system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
- A61F2009/00872—Cornea
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00878—Planning
- A61F2009/00882—Planning based on topography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00897—Scanning mechanisms or algorithms
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97926482A EP0921764A1 (en) | 1996-05-10 | 1997-05-09 | Conoscopic system for real-time corneal topography |
AU31242/97A AU3124297A (en) | 1996-05-10 | 1997-05-09 | Conoscopic system for real-time corneal topography |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1753996P | 1996-05-10 | 1996-05-10 | |
US60/017,539 | 1996-05-10 | ||
US2894596P | 1996-10-18 | 1996-10-18 | |
US60/028,945 | 1996-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997042891A1 true WO1997042891A1 (en) | 1997-11-20 |
Family
ID=26690004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/008083 WO1997042891A1 (en) | 1996-05-10 | 1997-05-09 | Conoscopic system for real-time corneal topography |
Country Status (4)
Country | Link |
---|---|
US (1) | US5909270A (en) |
EP (1) | EP0921764A1 (en) |
AU (1) | AU3124297A (en) |
WO (1) | WO1997042891A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999064916A1 (en) * | 1998-06-08 | 1999-12-16 | Optimet, Optical Metrology Ltd. | Illumination techniques for overcoming speckle artifacts in metrology applications |
DE19852331A1 (en) * | 1998-11-13 | 2000-05-18 | Benedikt Jean | Simultaneous measurement of surface topometry, biometry of eye involves projecting placido-ring system onto cornea, reflecting, mirroring in tear film, recovering by video topography |
DE19938203A1 (en) * | 1999-08-11 | 2001-02-15 | Aesculap Meditec Gmbh | Method and device for correcting visual defects in the human eye |
EP1285679A1 (en) * | 2000-04-27 | 2003-02-26 | Hamamatsu Photonics K. K. | Laser treatment apparatus |
US6601956B1 (en) | 1998-11-13 | 2003-08-05 | Benedikt Jean | Method and apparatus for the simultaneous determination of surface topometry and biometry of the eye |
US7246905B2 (en) | 1998-11-13 | 2007-07-24 | Jean Benedikt | Method and an apparatus for the simultaneous determination of surface topometry and biometry of the eye |
WO2008151341A2 (en) * | 2007-06-13 | 2008-12-18 | Strohal, Robert | Device for irradiating an object, in particular human skin, with uv light |
Families Citing this family (32)
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USRE39882E1 (en) * | 1997-11-11 | 2007-10-16 | Kabushiki Kaisha Topcon | Ophthalmologic characteristic measuring apparatus |
JP3740546B2 (en) * | 1997-11-11 | 2006-02-01 | 株式会社トプコン | Ophthalmic measuring device |
JP2000296110A (en) * | 1999-04-16 | 2000-10-24 | Topcon Corp | Corneal shape measuring apparatus |
US6616275B1 (en) * | 1999-08-11 | 2003-09-09 | Asclepion Meditec Gmbh | Method and device for completely correcting visual defects of the human eye |
US6419671B1 (en) | 1999-12-23 | 2002-07-16 | Visx, Incorporated | Optical feedback system for vision correction |
CA2301822A1 (en) * | 2000-03-24 | 2001-09-24 | 9071 9410 Quebec Inc. | Simultaneous projection of several patterns with simultaneous acquisition for inspection of objects in three-dimensions |
US6464357B1 (en) * | 2000-10-20 | 2002-10-15 | Kestrel Corporation | Wavefront characterization of corneas |
US6276800B1 (en) * | 2000-11-24 | 2001-08-21 | Eyetech Vision, Inc. | System for modeling a wavefront using sheared phase shifts |
US7216980B2 (en) * | 2001-02-09 | 2007-05-15 | Kabushiki Kaisha Topcon | Eye characteristic measuring apparatus |
US20030216763A1 (en) * | 2002-05-14 | 2003-11-20 | Patel Anilbhai S. | Method of determining the visual axis of an eye |
US7133137B2 (en) * | 2002-06-27 | 2006-11-07 | Visx, Incorporated | Integrated scanning and ocular tomography system and method |
MXPA05006000A (en) * | 2002-12-06 | 2005-08-18 | Visx Inc | Presbyopia correction using patient data. |
US8911086B2 (en) | 2002-12-06 | 2014-12-16 | Amo Manufacturing Usa, Llc | Compound modulation transfer function for laser surgery and other optical applications |
US7434936B2 (en) * | 2002-12-06 | 2008-10-14 | Amo Manufacturing Usa, Llc | Residual accommodation threshold for correction of presbyopia and other presbyopia correction using patient data |
US7320517B2 (en) * | 2002-12-06 | 2008-01-22 | Visx, Incorporated | Compound modulation transfer function for laser surgery and other optical applications |
US8342686B2 (en) | 2002-12-06 | 2013-01-01 | Amo Manufacturing Usa, Llc. | Compound modulation transfer function for laser surgery and other optical applications |
US7321421B2 (en) * | 2004-07-30 | 2008-01-22 | The Boeing Company | Apparatus and methods for scanning conoscopic holography measurements |
DE102004037479A1 (en) * | 2004-08-03 | 2006-03-16 | Carl Zeiss Meditec Ag | Fourier domain OCT ray tracing on the eye |
US7755072B2 (en) * | 2004-09-21 | 2010-07-13 | Zvi Porat | System and method for three-dimensional location of inclusions in a gemstone |
US7859677B2 (en) * | 2006-12-13 | 2010-12-28 | Bausch & Lomb Incorporated | Optical calibration system and method |
EP2144582B1 (en) | 2007-05-11 | 2017-08-23 | AMO Development, LLC | Combined wavefront and topography systems and methods |
US7988290B2 (en) * | 2007-06-27 | 2011-08-02 | AMO Wavefront Sciences LLC. | Systems and methods for measuring the shape and location of an object |
US7976163B2 (en) * | 2007-06-27 | 2011-07-12 | Amo Wavefront Sciences Llc | System and method for measuring corneal topography |
US7988293B2 (en) | 2008-11-14 | 2011-08-02 | AMO Wavefront Sciences LLC. | Method of qualifying light spots for optical measurements and measurement instrument employing method of qualifying light spots |
CN101690686B (en) * | 2009-09-04 | 2011-04-06 | 无锡市康明医疗器械有限公司 | Epikeratome under guidance of corneal topography |
EP2477569B1 (en) | 2009-09-14 | 2018-10-24 | Memorial Sloan-Kettering Cancer Center | APPARATUS and SYSTEM FOR PROVIDING LASER STEERING AND FOCUSING FOR INCISION, EXCISION AND ABLATION OF TISSUE IN MINIMALLY-INVASIVE SURGERY |
US8414124B2 (en) * | 2009-10-21 | 2013-04-09 | Sis Ag, Surgical Instrument Systems | Device and method for measuring a cornea |
US8622546B2 (en) | 2011-06-08 | 2014-01-07 | Amo Wavefront Sciences, Llc | Method of locating valid light spots for optical measurement and optical measurement instrument employing method of locating valid light spots |
AU2013231978A1 (en) * | 2012-03-14 | 2014-10-02 | Memorial Sloan Kettering Cancer Center | Apparatus, system and method for providing laser steering and focusing for incision, excision and ablation of tissue in minimally-invasive surgery |
AU2013375414B2 (en) * | 2013-01-28 | 2016-11-03 | Alcon Inc. | Apparatus for corneal crosslinking |
DE112018001744T5 (en) * | 2017-03-29 | 2019-12-19 | Sony Corporation | Medical imaging device and endoscope |
AU2020460658A1 (en) * | 2020-07-31 | 2023-02-02 | Alcon Inc. | Visualization and treatment of media opacity in eye |
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US5395356A (en) * | 1993-06-04 | 1995-03-07 | Summit Technology, Inc. | Correction of presbyopia by photorefractive keratectomy |
US5549599A (en) * | 1994-04-28 | 1996-08-27 | Nidek Co., Ltd. | Apparatus for laser surgery on a cornea |
US5613965A (en) * | 1994-12-08 | 1997-03-25 | Summit Technology Inc. | Corneal reprofiling using an annular beam of ablative radiation |
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US5571107A (en) * | 1993-10-26 | 1996-11-05 | Shaibani; Sanan B. | Laser surgical apparatus for sculpting a cornea using a diffractive optical element and method of using the same |
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US5820627A (en) * | 1996-03-28 | 1998-10-13 | Physical Sciences, Inc. | Real-time optical feedback control of laser lithotripsy |
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1997
- 1997-05-09 WO PCT/US1997/008083 patent/WO1997042891A1/en not_active Application Discontinuation
- 1997-05-09 EP EP97926482A patent/EP0921764A1/en not_active Withdrawn
- 1997-05-09 US US08/854,212 patent/US5909270A/en not_active Expired - Fee Related
- 1997-05-09 AU AU31242/97A patent/AU3124297A/en not_active Abandoned
Patent Citations (3)
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US5395356A (en) * | 1993-06-04 | 1995-03-07 | Summit Technology, Inc. | Correction of presbyopia by photorefractive keratectomy |
US5549599A (en) * | 1994-04-28 | 1996-08-27 | Nidek Co., Ltd. | Apparatus for laser surgery on a cornea |
US5613965A (en) * | 1994-12-08 | 1997-03-25 | Summit Technology Inc. | Corneal reprofiling using an annular beam of ablative radiation |
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IWAI AND SASKURA.,: ""SPECKLE REDUCTION IN COHERENT INFORMATION PROCESSING".", IEEE PROCEEDINGS,, vol. 84, no. 5, 1996, pages 765 - 781 |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999064916A1 (en) * | 1998-06-08 | 1999-12-16 | Optimet, Optical Metrology Ltd. | Illumination techniques for overcoming speckle artifacts in metrology applications |
US6169634B1 (en) | 1998-06-08 | 2001-01-02 | Optimet, Optical Metrology Ltd | Illumination techniques for overcoming speckle artifacts in metrology applications |
DE19852331A1 (en) * | 1998-11-13 | 2000-05-18 | Benedikt Jean | Simultaneous measurement of surface topometry, biometry of eye involves projecting placido-ring system onto cornea, reflecting, mirroring in tear film, recovering by video topography |
US6601956B1 (en) | 1998-11-13 | 2003-08-05 | Benedikt Jean | Method and apparatus for the simultaneous determination of surface topometry and biometry of the eye |
US7246905B2 (en) | 1998-11-13 | 2007-07-24 | Jean Benedikt | Method and an apparatus for the simultaneous determination of surface topometry and biometry of the eye |
DE19938203A1 (en) * | 1999-08-11 | 2001-02-15 | Aesculap Meditec Gmbh | Method and device for correcting visual defects in the human eye |
US8029136B2 (en) | 1999-08-11 | 2011-10-04 | Carl Zeiss Meditec Ag | Method and device for performing online aberrometry in refractive eye correction |
US8356897B2 (en) | 1999-08-11 | 2013-01-22 | Carl Zeiss Meditec Ag | Method and device for performing online aberrometry in refractive eye correction |
EP1285679A1 (en) * | 2000-04-27 | 2003-02-26 | Hamamatsu Photonics K. K. | Laser treatment apparatus |
EP1285679A4 (en) * | 2000-04-27 | 2005-01-19 | Hamamatsu Photonics Kk | Laser treatment apparatus |
WO2008151341A2 (en) * | 2007-06-13 | 2008-12-18 | Strohal, Robert | Device for irradiating an object, in particular human skin, with uv light |
WO2008151341A3 (en) * | 2007-06-13 | 2009-05-07 | Strohal Robert | Device for irradiating an object, in particular human skin, with uv light |
Also Published As
Publication number | Publication date |
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US5909270A (en) | 1999-06-01 |
AU3124297A (en) | 1997-12-05 |
EP0921764A1 (en) | 1999-06-16 |
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