JP4630126B2 - 眼光学特性測定装置 - Google Patents
眼光学特性測定装置 Download PDFInfo
- Publication number
- JP4630126B2 JP4630126B2 JP2005142307A JP2005142307A JP4630126B2 JP 4630126 B2 JP4630126 B2 JP 4630126B2 JP 2005142307 A JP2005142307 A JP 2005142307A JP 2005142307 A JP2005142307 A JP 2005142307A JP 4630126 B2 JP4630126 B2 JP 4630126B2
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- Prior art keywords
- eye
- image
- examined
- light
- refractive power
- Prior art date
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- 230000003287 optical effect Effects 0.000 title claims description 87
- 238000005259 measurement Methods 0.000 claims description 60
- 201000009310 astigmatism Diseases 0.000 claims description 31
- 238000004364 calculation method Methods 0.000 claims description 10
- 238000004088 simulation Methods 0.000 claims description 10
- 210000000695 crystalline len Anatomy 0.000 description 35
- 210000001747 pupil Anatomy 0.000 description 19
- 238000012545 processing Methods 0.000 description 10
- 238000003384 imaging method Methods 0.000 description 7
- 230000010287 polarization Effects 0.000 description 5
- 206010030113 Oedema Diseases 0.000 description 4
- 210000004087 cornea Anatomy 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004304 visual acuity Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
- A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
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- 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
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
2 投影光学系
3 受光光学系
4 光源部
5 光源
14 投影系開口絞り
15 固視標
17 固視標系
19 合焦レンズ
21 光電検出器
22 受光系開口絞り
27 記憶部
28 制御部
29 表示部
30 眼屈折力測定部
32 光源
37 光電検出器
40 屈折度数測定用視標投影光学系
41 屈折度数測定用受光光学系
Claims (5)
- 被検眼眼底に視標像を投影する為の第1の視標投影光学系と、被検眼眼底から反射された前記第1の視標像投影系からの視標像を受光する第1の受光手段と、該第1の受光手段からの受光結果に基づき被検眼の眼屈折力を測定する眼屈折力測定部と、被検眼眼底に点状の視標像を投影する為の第2の視標投影手段と、被検眼眼底から反射された前記視標像を受光する第2の受光手段と、該第2の受光手段で得られた被検眼屈折度を中心に前後で所定屈折度ピッチで取得した複数の画像に基づき眼屈折力測定を行う様にした眼光学特性測定部とを具備することを特徴とする眼光学特性測定装置。
- 前記複数の画像の画像中、最小錯乱円画像に基づき球面屈折力を測定する請求項1の眼光学特性測定装置。
- 前記複数の画像の画像中、前焦線画像に対応する屈折度と後焦線画像に対応する屈折度との差により円柱屈折度、前焦線画像、後焦線画像の形状により乱視軸角度を測定する請求項1の眼光学特性測定装置。
- 前記眼光学特性測定部は、前記第2の受光手段で得られた画像に基づき光強度分布を求め、得られた光強度分布から被検眼眼底に投影される視標像のシミュレーション画像を演算する演算手段を具備する請求項1の眼光学特性測定装置。
- 前記演算手段は、シミュレーション画像の所定経線方向での光強度分布特性を検出する請求項4の眼光学特性測定装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005142307A JP4630126B2 (ja) | 2005-05-16 | 2005-05-16 | 眼光学特性測定装置 |
EP06251988A EP1723903A1 (en) | 2005-05-16 | 2006-04-10 | Eye's optical characteristics measuring system |
US11/402,736 US7244025B2 (en) | 2005-05-16 | 2006-04-12 | Eye's optical characteristics measuring system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005142307A JP4630126B2 (ja) | 2005-05-16 | 2005-05-16 | 眼光学特性測定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006314668A JP2006314668A (ja) | 2006-11-24 |
JP4630126B2 true JP4630126B2 (ja) | 2011-02-09 |
Family
ID=36843251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005142307A Active JP4630126B2 (ja) | 2005-05-16 | 2005-05-16 | 眼光学特性測定装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7244025B2 (ja) |
EP (1) | EP1723903A1 (ja) |
JP (1) | JP4630126B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7448753B1 (en) * | 2005-07-19 | 2008-11-11 | Chinnock Randal B | Portable Digital Medical Camera for Capturing Images of the Retina or the External Auditory Canal, and Methods of Use |
US7970028B2 (en) * | 2008-01-30 | 2011-06-28 | Corning Incorporated | System and methods for speckle reduction |
JP5248926B2 (ja) * | 2008-06-05 | 2013-07-31 | 株式会社ニデック | 眼屈折力測定装置 |
US8934005B2 (en) * | 2011-07-14 | 2015-01-13 | Koninklijke Philips N.V. | System and method for remote measurement of optical focus |
US9655507B2 (en) | 2011-11-02 | 2017-05-23 | Nidek Co., Ltd. | Corneal imaging device |
US9072462B2 (en) * | 2012-09-27 | 2015-07-07 | Wavetec Vision Systems, Inc. | Geometric optical power measurement device |
JP2016059545A (ja) * | 2014-09-17 | 2016-04-25 | 株式会社トーメーコーポレーション | 眼屈折力測定装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001095760A (ja) * | 1999-09-28 | 2001-04-10 | Topcon Corp | 眼の光学特性測定装置 |
JP2002112965A (ja) * | 2000-10-10 | 2002-04-16 | Topcon Corp | 眼光学特性測定装置 |
JP2002209852A (ja) * | 2000-11-16 | 2002-07-30 | Topcon Corp | 眼光学特性測定装置 |
JP2004097377A (ja) * | 2002-09-06 | 2004-04-02 | Topcon Corp | 眼特性測定装置 |
JP2004159669A (ja) * | 2001-11-09 | 2004-06-10 | Topcon Corp | 眼特性測定装置 |
JP2005103103A (ja) * | 2003-09-30 | 2005-04-21 | Nidek Co Ltd | 眼屈折力測定装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3031822A1 (de) * | 1979-08-24 | 1981-03-12 | Canon K.K., Tokyo | Augenuntersuchungsgeraet. |
JP2813346B2 (ja) | 1987-11-13 | 1998-10-22 | 株式会社トプコン | 自動眼屈折力測定装置 |
US5500697A (en) * | 1993-07-30 | 1996-03-19 | Nidek Co., Ltd. | Ophthalmic apparatus for measuring refractive characteristic of eye to be measured |
US6789900B2 (en) * | 1996-11-22 | 2004-09-14 | Jozef F. Van De Velde | Scanning laser ophthalmoscope optimized for selective retinal microphotocoagulation |
JP4174126B2 (ja) * | 1999-03-17 | 2008-10-29 | 株式会社トプコン | 眼科測定装置 |
US6264328B1 (en) * | 1999-10-21 | 2001-07-24 | University Of Rochester | Wavefront sensor with off-axis illumination |
EP1104663A3 (en) * | 1999-11-15 | 2005-01-19 | Kabushiki Kaisha Topcon | Eye aberration characteristic measuring apparatus |
JP3784247B2 (ja) * | 2000-08-31 | 2006-06-07 | 株式会社ニデック | 眼底カメラ |
JP2002325731A (ja) * | 2001-04-27 | 2002-11-12 | Nidek Co Ltd | 眼科撮影装置 |
JP4102058B2 (ja) * | 2001-11-09 | 2008-06-18 | 株式会社トプコン | 眼の光学特性測定装置 |
JP3939229B2 (ja) * | 2002-10-08 | 2007-07-04 | 株式会社ニデック | 眼科装置 |
-
2005
- 2005-05-16 JP JP2005142307A patent/JP4630126B2/ja active Active
-
2006
- 2006-04-10 EP EP06251988A patent/EP1723903A1/en not_active Withdrawn
- 2006-04-12 US US11/402,736 patent/US7244025B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001095760A (ja) * | 1999-09-28 | 2001-04-10 | Topcon Corp | 眼の光学特性測定装置 |
JP2002112965A (ja) * | 2000-10-10 | 2002-04-16 | Topcon Corp | 眼光学特性測定装置 |
JP2002209852A (ja) * | 2000-11-16 | 2002-07-30 | Topcon Corp | 眼光学特性測定装置 |
JP2004159669A (ja) * | 2001-11-09 | 2004-06-10 | Topcon Corp | 眼特性測定装置 |
JP2004097377A (ja) * | 2002-09-06 | 2004-04-02 | Topcon Corp | 眼特性測定装置 |
JP2005103103A (ja) * | 2003-09-30 | 2005-04-21 | Nidek Co Ltd | 眼屈折力測定装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1723903A1 (en) | 2006-11-22 |
JP2006314668A (ja) | 2006-11-24 |
US7244025B2 (en) | 2007-07-17 |
US20060256286A1 (en) | 2006-11-16 |
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