DE69927727D1 - Vorrichtung zur Untersuchung des Auges - Google Patents

Vorrichtung zur Untersuchung des Auges

Info

Publication number
DE69927727D1
DE69927727D1 DE69927727T DE69927727T DE69927727D1 DE 69927727 D1 DE69927727 D1 DE 69927727D1 DE 69927727 T DE69927727 T DE 69927727T DE 69927727 T DE69927727 T DE 69927727T DE 69927727 D1 DE69927727 D1 DE 69927727D1
Authority
DE
Germany
Prior art keywords
meniscus
radius
tear
image
curvature
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.)
Expired - Lifetime
Application number
DE69927727T
Other languages
English (en)
Other versions
DE69927727T2 (de
Inventor
Takayoshi Suzuki
Norihiko Yokoi
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.)
Kowa Co Ltd
Original Assignee
Kowa Co Ltd
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 Kowa Co Ltd filed Critical Kowa Co Ltd
Publication of DE69927727D1 publication Critical patent/DE69927727D1/de
Application granted granted Critical
Publication of DE69927727T2 publication Critical patent/DE69927727T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61B3/101—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for examining the tear film
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Eye Examination Apparatus (AREA)
  • Prostheses (AREA)
DE69927727T 1998-03-20 1999-03-18 Vorrichtung zur Untersuchung des Auges Expired - Lifetime DE69927727T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP07161598A JP3896211B2 (ja) 1998-03-20 1998-03-20 眼科測定装置
JP7161598 1998-03-20

Publications (2)

Publication Number Publication Date
DE69927727D1 true DE69927727D1 (de) 2006-03-02
DE69927727T2 DE69927727T2 (de) 2006-04-27

Family

ID=13465741

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69927727T Expired - Lifetime DE69927727T2 (de) 1998-03-20 1999-03-18 Vorrichtung zur Untersuchung des Auges

Country Status (6)

Country Link
US (2) US7278740B1 (de)
EP (1) EP0943288B8 (de)
JP (1) JP3896211B2 (de)
AT (1) ATE306843T1 (de)
DE (1) DE69927727T2 (de)
ES (1) ES2247758T3 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7241012B2 (en) 2003-01-21 2007-07-10 Kabushiki Kaisha Topcon Ophthalmologic apparatus
EP1709959A4 (de) * 2004-01-16 2008-07-16 House Foods Corp Reagens für die untersuchung der tränensekretion und verfahren zur untersuchung der tränensekretion
JP4766919B2 (ja) * 2005-05-16 2011-09-07 則彦 横井 眼科測定方法および眼科測定装置
WO2007004383A1 (ja) 2005-07-01 2007-01-11 Kowa Kabushiki Kaisha 眼科撮影装置
US7520609B2 (en) 2006-01-18 2009-04-21 Amo Manufacturing Llc Non-invasive measurement of tear volume systems and methods
US8249695B2 (en) * 2006-09-29 2012-08-21 Tearscience, Inc. Meibomian gland imaging
US7758190B2 (en) 2007-06-20 2010-07-20 Tearscience, Inc. Tear film measurement
US8192026B2 (en) 2007-06-20 2012-06-05 Tearscience, Inc. Tear film measurement
JP5038925B2 (ja) * 2008-01-29 2012-10-03 則彦 横井 眼科測定装置
US8915592B2 (en) 2009-04-01 2014-12-23 Tearscience, Inc. Apparatuses and methods of ocular surface interferometry (OSI) employing polarization and subtraction for imaging, processing, and/or displaying an ocular tear film
CA3010578C (en) 2009-04-01 2021-03-09 Tearscience, Inc. Ocular surface interferometry (osi) devices, systems, and methods for imaging, processing, and/or displaying an ocular tear film and/or measuring ocular tear film layer thickness(es)
US8888286B2 (en) 2009-04-01 2014-11-18 Tearscience, Inc. Full-eye illumination ocular surface imaging of an ocular tear film for determining tear film thickness and/or providing ocular topography
US9888839B2 (en) 2009-04-01 2018-02-13 Tearscience, Inc. Methods and apparatuses for determining contact lens intolerance in contact lens wearer patients based on dry eye tear film characteristic analysis and dry eye symptoms
US9642520B2 (en) 2009-04-01 2017-05-09 Tearscience, Inc. Background reduction apparatuses and methods of ocular surface interferometry (OSI) employing polarization for imaging, processing, and/or displaying an ocular tear film
JP5572407B2 (ja) 2010-01-29 2014-08-13 京都府公立大学法人 眼科装置及び画像分類プログラム
US9360414B2 (en) * 2011-10-14 2016-06-07 University of Pittsburgh—of the Commonwealth System of Higher Education Light refraction imaging to measure liquid volume
US9339177B2 (en) 2012-12-21 2016-05-17 Tearscience, Inc. Full-eye illumination ocular surface imaging of an ocular tear film for determining tear film thickness and/or providing ocular topography
WO2014179795A2 (en) 2013-05-03 2014-11-06 Tearscience, Inc. Eyelid illumination systems and methods for imaging meibomian glands for meibomian gland analysis
US9795290B2 (en) 2013-11-15 2017-10-24 Tearscience, Inc. Ocular tear film peak detection and stabilization detection systems and methods for determining tear film layer characteristics
JP6557707B2 (ja) * 2017-08-04 2019-08-07 エルライズ株式会社 眼科測定装置、及び眼科測定システム
WO2019031424A1 (ja) 2017-08-07 2019-02-14 興和株式会社 涙液状態評価方法、コンピュータプログラム、装置
US11147735B2 (en) 2018-02-26 2021-10-19 Olympic Ophthalmics, Inc. Therapeutic handheld devices for disorders
US11185220B2 (en) 2019-04-24 2021-11-30 Topcon Corporation Ophthalmologic apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269197A (en) * 1979-04-05 1981-05-26 Gilbard Jeffrey P Method of measuring tear osmolarity and apparatus therefor
GB2123977B (en) * 1982-07-03 1986-04-16 Smith & Nephew Ass Ophthalmic test apparatus
US4582404A (en) * 1984-07-16 1986-04-15 Hamilton C B Sagometer
US4951683A (en) * 1989-01-19 1990-08-28 Davis Jeffrey P Device for detecting keratoconjunctivitis sicca
US5352445A (en) * 1992-05-07 1994-10-04 Lavaux Joseph E Lavaux tear test lacrimal equilibration time (LET)
JP3600377B2 (ja) * 1996-07-30 2004-12-15 興和株式会社 眼科装置

Also Published As

Publication number Publication date
US7278740B1 (en) 2007-10-09
EP0943288A1 (de) 1999-09-22
ES2247758T3 (es) 2006-03-01
US7413304B2 (en) 2008-08-19
EP0943288B8 (de) 2006-06-14
ATE306843T1 (de) 2005-11-15
JPH11267102A (ja) 1999-10-05
US20070258043A1 (en) 2007-11-08
DE69927727T2 (de) 2006-04-27
JP3896211B2 (ja) 2007-03-22
EP0943288B1 (de) 2005-10-19

Similar Documents

Publication Publication Date Title
DE69927727D1 (de) Vorrichtung zur Untersuchung des Auges
US6430371B1 (en) Ring light guide device for camera
ATE183589T1 (de) Beleuchtungseinrichtung für ein mikroskop
CA2286009A1 (en) Optical instrument having a variable optical filter
CA2520269A1 (en) Moire aberrometer
FR2372617A1 (fr) Refractometre pour la determination automatique objective de l'etat de refringence d'un oeil
EP1164407A3 (de) Beleuchtungssystem und Abtastbelichtungsapparat unter Verwendung desselben
US4187014A (en) Eye fundus camera
DE69016093D1 (de) Retrofokus-Objektivlinse und optische Abtastanordnung mit einer derartigen Linse.
DE60220630D1 (de) Augenuntersuchungsgerät
US4429970A (en) Illuminating light amount controllable retinal camera
EP1304594A3 (de) Projektionsbelichtungsanlage der Mikrolithographie für 200 nm
JPS56142509A (en) Lighting device of microscope
JP2005342283A5 (de)
FR2378495A1 (fr) Systeme optique pour l'eclairement du fond de l'oeil
US5426483A (en) Camera with a line of sight detecting device
ATE167577T1 (de) Objektivblende
JP2002219107A (ja) 眼底撮影装置
WO2001058343A3 (en) Fundus photographic technique to determine eye refraction for optic disc size calculations
TW342467B (en) Real-image zoom finder
DE60026504D1 (de) Kamerasystem und anzeigevorrichtung
JPS6139504U (ja) 眼底カメラのデ−タ写し込み装置
KR200187235Y1 (ko) 의료용 및 산업용에 사용되는 카메라에 결합되는 캡
EP0653655A3 (de) Scharfeinstellungssuchgerät
KR0138045Y1 (ko) 안구 촬영기의 홍채조명용 광섬유 케이블의 빛반사식 조명 장치

Legal Events

Date Code Title Description
8364 No opposition during term of opposition