JP6349701B2 - 眼科測定装置 - Google Patents
眼科測定装置 Download PDFInfo
- Publication number
- JP6349701B2 JP6349701B2 JP2013248476A JP2013248476A JP6349701B2 JP 6349701 B2 JP6349701 B2 JP 6349701B2 JP 2013248476 A JP2013248476 A JP 2013248476A JP 2013248476 A JP2013248476 A JP 2013248476A JP 6349701 B2 JP6349701 B2 JP 6349701B2
- Authority
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- Prior art keywords
- image
- purkinje
- index
- optical system
- cornea
- 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.)
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Links
- 230000003287 optical effect Effects 0.000 claims description 114
- 238000005259 measurement Methods 0.000 claims description 81
- 210000004087 cornea Anatomy 0.000 claims description 69
- 238000003384 imaging method Methods 0.000 claims description 53
- 238000001514 detection method Methods 0.000 claims description 48
- 238000012545 processing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 description 62
- 230000008569 process Effects 0.000 description 57
- 210000000695 crystalline len Anatomy 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 6
- 238000005286 illumination Methods 0.000 description 5
- 206010027646 Miosis Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003547 miosis Effects 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000003708 edge detection Methods 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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
- A61B3/107—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
- 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
- A61B3/1005—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring distances inside the eye, e.g. thickness of the cornea
-
- 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
- A61B3/14—Arrangements specially adapted for eye photography
-
- 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
- A61B3/14—Arrangements specially adapted for eye photography
- A61B3/15—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing
- A61B3/152—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing for aligning
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
Description
20 撮像光学系
27 撮像素子
30 アライメント投影光学系
50 固視標投影光学系
55 固視標位置調節機構
Ra1,Ra2 第1プルキンエ像
Rp1,Rp2 第2プルキンエ像
Claims (1)
- 被検眼の角膜に向けてパターン指標を投影する投影光学系と、前記パターン指標が前記被検眼の角膜で反射されることによって形成される指標像を撮像素子で撮像する撮像光学系と、
前記撮像素子から出力される撮像信号に基づいて前記指標像の検出処理を行う検出手段と、を備え、
前記検出手段は、
光軸中心に関して対称な第1パターン指標が形成されるように前記投影光学系を制御し、前記第1パターン指標に基づく前記指標像である第1指標像を撮像し、
前記第1パターン指標のうち一部による第2パターン指標であって光軸中心に関して非対称な第2パターン指標が形成されるように、前記投影光学系を制御し、前記第2パターン指標に基づく指標像である第2指標像を撮像し、
角膜の前面で反射されることによって形成される指標像である第1プルキンエ像と、角膜の後面で反射されることによって形成される指標像である第2プルキンエ像とを、前記第1指標像と前記第2指標像とから検出し、
前記第1プルキンエ像の検出結果と前記第2プルキンエ像の検出結果とに基づいて、被検眼の角膜後面に関する情報を取得する角膜後面情報取得手段と、を備えていることを特徴とする眼科測定装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013248476A JP6349701B2 (ja) | 2013-11-29 | 2013-11-29 | 眼科測定装置 |
US14/554,466 US9480396B2 (en) | 2013-11-29 | 2014-11-26 | Ophthalmic measurement apparatus and ophthalmic measurement program |
EP14195220.0A EP2878258B1 (en) | 2013-11-29 | 2014-11-27 | Ophthalmic measurement apparatus and ophthalmic measurement program |
CN201410717827.4A CN104665762B (zh) | 2013-11-29 | 2014-12-01 | 眼科测量装置和眼科测量程序 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013248476A JP6349701B2 (ja) | 2013-11-29 | 2013-11-29 | 眼科測定装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018109824A Division JP6662412B2 (ja) | 2018-06-07 | 2018-06-07 | 眼科測定装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2015104554A JP2015104554A (ja) | 2015-06-08 |
JP2015104554A5 JP2015104554A5 (ja) | 2017-01-12 |
JP6349701B2 true JP6349701B2 (ja) | 2018-07-04 |
Family
ID=51982476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013248476A Active JP6349701B2 (ja) | 2013-11-29 | 2013-11-29 | 眼科測定装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9480396B2 (ja) |
EP (1) | EP2878258B1 (ja) |
JP (1) | JP6349701B2 (ja) |
CN (1) | CN104665762B (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6471466B2 (ja) * | 2014-11-12 | 2019-02-20 | 株式会社ニデック | 眼科装置、及びそれに用いる処理プログラム |
JP6558161B2 (ja) * | 2015-09-04 | 2019-08-14 | 株式会社ニデック | 眼科装置、および画像処理プログラム |
JP6613103B2 (ja) * | 2015-10-29 | 2019-11-27 | 株式会社トプコン | 眼科装置 |
JP2018089082A (ja) * | 2016-12-01 | 2018-06-14 | 株式会社ニデック | 眼科測定装置 |
AU2016432713B2 (en) * | 2016-12-17 | 2023-04-13 | Alcon Inc. | Determining eye surface contour using multifocal keratometry |
CN106923784A (zh) * | 2017-02-15 | 2017-07-07 | 上海新眼光医疗器械股份有限公司 | 人眼参数测量系统 |
NL2018712B1 (en) * | 2017-04-13 | 2018-10-24 | Cassini B V | Eye measuring apparatus |
JP6663119B2 (ja) * | 2017-11-30 | 2020-03-11 | サミー株式会社 | 遊技機 |
JP6663120B2 (ja) * | 2017-11-30 | 2020-03-11 | サミー株式会社 | 遊技機 |
CN107744386B (zh) * | 2017-12-02 | 2020-02-28 | 临沂市人民医院 | 医用眼部光学相干断层成像方法 |
CN108324240A (zh) * | 2018-01-22 | 2018-07-27 | 深圳盛达同泽科技有限公司 | 眼底相机 |
JP7009273B2 (ja) * | 2018-03-20 | 2022-01-25 | 株式会社トプコン | 眼科装置及びその角膜形状測定方法 |
JP7033975B2 (ja) * | 2018-03-26 | 2022-03-11 | 株式会社トプコン | 眼科装置及びその角膜形状測定方法 |
CN109645956B (zh) * | 2018-12-25 | 2021-08-06 | 重庆远视科技有限公司 | 眼睛屈光度测量装置 |
JP7415453B2 (ja) * | 2019-11-06 | 2024-01-17 | 株式会社ニデック | 眼科測定装置 |
US20210212601A1 (en) * | 2020-01-09 | 2021-07-15 | Daniel R. Neal | System and Methods for Dynamic Position Measurement of Ocular Structures |
CN112060052B (zh) * | 2020-09-16 | 2022-02-08 | 宁波市眼科医院 | 一种可自动验光和检测角膜曲率的机器人设备 |
CN112006650A (zh) * | 2020-09-21 | 2020-12-01 | 南京览视医疗科技有限公司 | 一种采集眼底图像的方法及眼底相机 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0659272B2 (ja) * | 1987-02-12 | 1994-08-10 | 株式会社ニデツク | 角膜形状測定装置 |
US5475452A (en) * | 1994-02-24 | 1995-12-12 | Keravision, Inc. | Device and method for mapping objects |
JP3703310B2 (ja) * | 1997-05-30 | 2005-10-05 | 株式会社ニデック | 手持ち型眼科装置 |
JP3602371B2 (ja) | 1999-06-04 | 2004-12-15 | 株式会社ニデック | 角膜形状測定装置 |
US6193371B1 (en) | 2000-03-27 | 2001-02-27 | Richard Snook | Keratometer/pachymeter |
JP3637045B2 (ja) | 2002-09-30 | 2005-04-06 | 株式会社ニデック | 眼科装置 |
JP4574277B2 (ja) | 2004-08-09 | 2010-11-04 | 興和株式会社 | 眼科撮影装置 |
JP2006158749A (ja) * | 2004-12-09 | 2006-06-22 | San Contact Lens:Kk | プラチドリング像撮影装置 |
JP4824400B2 (ja) | 2005-12-28 | 2011-11-30 | 株式会社トプコン | 眼科装置 |
US8363783B2 (en) * | 2007-06-04 | 2013-01-29 | Oraya Therapeutics, Inc. | Method and device for ocular alignment and coupling of ocular structures |
ES2656421T3 (es) * | 2007-08-21 | 2018-02-27 | Visionix Ltd. | Sistema multifuncional de medición oftálmica y procedimiento correspondiente |
JP4944714B2 (ja) * | 2007-08-31 | 2012-06-06 | 株式会社コーナン・メディカル | 前眼部観察装置 |
EP2268192B8 (en) | 2008-04-17 | 2022-01-19 | Stichting VUmc | Apparatus for corneal shape analysis and method for determining a corneal thickness |
JP5292079B2 (ja) * | 2008-12-08 | 2013-09-18 | 株式会社トプコン | 眼科装置 |
JP5654225B2 (ja) | 2009-09-30 | 2015-01-14 | 株式会社ニデック | 角膜形状測定装置 |
US8414124B2 (en) * | 2009-10-21 | 2013-04-09 | Sis Ag, Surgical Instrument Systems | Device and method for measuring a cornea |
JP5597012B2 (ja) | 2010-03-31 | 2014-10-01 | キヤノン株式会社 | 断層画像撮像装置および断層画像撮像方法 |
JP5578560B2 (ja) | 2010-09-03 | 2014-08-27 | 株式会社ニデック | 前眼部測定装置 |
JP6007466B2 (ja) | 2010-12-27 | 2016-10-12 | 株式会社ニデック | 角膜形状測定装置 |
JP2012143492A (ja) | 2011-01-14 | 2012-08-02 | Nidek Co Ltd | 角膜厚測定装置 |
-
2013
- 2013-11-29 JP JP2013248476A patent/JP6349701B2/ja active Active
-
2014
- 2014-11-26 US US14/554,466 patent/US9480396B2/en active Active
- 2014-11-27 EP EP14195220.0A patent/EP2878258B1/en active Active
- 2014-12-01 CN CN201410717827.4A patent/CN104665762B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
JP2015104554A (ja) | 2015-06-08 |
US20150150448A1 (en) | 2015-06-04 |
EP2878258B1 (en) | 2018-10-10 |
CN104665762A (zh) | 2015-06-03 |
CN104665762B (zh) | 2017-09-26 |
US9480396B2 (en) | 2016-11-01 |
EP2878258A1 (en) | 2015-06-03 |
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