WO2006019195A1 - 眼科装置 - Google Patents
眼科装置 Download PDFInfo
- Publication number
- WO2006019195A1 WO2006019195A1 PCT/JP2005/015592 JP2005015592W WO2006019195A1 WO 2006019195 A1 WO2006019195 A1 WO 2006019195A1 JP 2005015592 W JP2005015592 W JP 2005015592W WO 2006019195 A1 WO2006019195 A1 WO 2006019195A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- monitor
- unit
- eye
- measurement
- image
- 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.)
- Ceased
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
-
- 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
- A61B3/18—Arrangement of plural eye-testing or -examining apparatus
-
- 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
- A61B3/0016—Operational features thereof
- A61B3/0041—Operational features thereof characterised by display arrangements
- A61B3/005—Constructional features of the display
-
- 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
-
- 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
- A61B3/14—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
Definitions
- the present invention relates to an ophthalmologic apparatus for inspecting or measuring a subject's eye.
- Ophthalmic devices such as an ocular refractive power measurement device, a corneal shape measurement device, a non-contact tonometer, and the like are used in a state where the examiner and the subject face each other across the device.
- a stationary apparatus is common.
- a monitor for displaying an observation image of the subject's eye is fixedly arranged on the examiner side of the device with the screen almost vertical. Then, while in a sitting state, the examiner operates the device to observe or measure the subject's eye while observing the observation image of the subject's eye displayed on the monitor.
- the examiner has to provide assistance such as lifting the subject's eyelids, the examiner is impossible to assist while observing the observation image of the subject's eyes displayed on the monitor. It must be in a position and not easy.
- the assist can be performed while easily observing the observation image of the subject's eye displayed on the monitor.
- the technical issue is to provide an ophthalmic device that can be used. Disclosure of the invention
- the present invention is characterized by having the following configuration.
- the ophthalmologic apparatus includes a measurement optical system for inspecting or measuring the subject's eye.
- a measurement unit a fixed support unit that movably supports the measurement unit, an imaging optical device that is provided in the measurement unit and has an image sensor, and an imaging device for observing the anterior segment of the subject's eye
- a monitor that displays the image of the anterior segment that has been imaged, and a monitor that is fixed to the measurement unit or fixed so that the position of the monitor can be changed between the first position where the screen is approximately vertical and the second position where the screen is approximately horizontal
- a holding unit that holds the support unit so as to be movable.
- FIG. 1 is a schematic configuration diagram of an ophthalmologic apparatus according to an embodiment of the present invention.
- FIG. 2 is a schematic configuration diagram of a monitor holding mechanism.
- FIG. 3 is a schematic configuration diagram of a monitor holding mechanism.
- FIG. 4 is a schematic configuration diagram of the optical system and the control system of this apparatus.
- Fig. 5 is a diagram showing a state in which the examiner stands on the side of the ophthalmic apparatus and performs measurement.
- FIG. 1 is a schematic configuration diagram of an ophthalmologic apparatus according to an embodiment of the present invention.
- the ophthalmic apparatus 1 is a stationary apparatus that is used by being mounted on the motorized table 2.
- the device 1 is used in a state where the examiner and the subject are sitting on the chair so that the examiner and the subject face each other with the device 1 in between.
- the device 1 includes a base 10, a movable base 11 that can be moved in the left-right direction and the front-back direction by tilting the joystick 14, and a movable base by a three-dimensional moving unit 16.
- 1 1 Measurement unit that can move in the three-dimensional direction of the left and right direction (hereinafter X direction), vertical direction (hereinafter Y direction) and front and rear direction (hereinafter Z direction) and the face of the subject
- a face support unit 12 fixed to the base 10 for support.
- the moving part 16 is a Y table that can move in the Y direction.
- a Z table that can move in the Z direction is placed on the X table
- an X table that can move in the X direction is placed on the Z table
- the measurement unit 13 is placed on the X table.
- the Y table, Z table, and X table are moved by a motor, etc., to move the measurement unit 13 in the three-dimensional direction.
- the stagger mechanism 17 fixes the moving base 1 1 to the base 10.
- a monitor 18 (a liquid crystal display in this embodiment) is provided that displays an anterior segment image that is an observation image of the subject's eye, measurement results, and the like. ing.
- This monitor 18 is arranged in a state (reference position) substantially perpendicular to the measurement unit 13 so that the arrangement position can be changed and adjusted from there to a substantially horizontal state.
- the monitor 18 may be provided on the moving base 11 or may be provided on the base 10. That is, the device 1 may be provided on either the moving part side or the fixed part side.
- FIGS. 2 and 3 are schematic configuration diagrams of the holding mechanism of the monitor 18.
- a free stop hinge mechanism is used as a holding mechanism for the monitor 18. That is, the L-shaped metal fitting 21 is fixed to the frame 20 to which the monitor 18 is fixed. The bracket 21 is attached to the first arm 2 3 a of the free stop hinge 2 3. The shaft 22 of the first arm 23 a is passed through the hole of the second arm 23 b of the free stop hinge 23 fixed to the housing of the measurement unit 13. Then, by adjusting the gap 2 3 c spacing of the second arm 2 3 b by tightening the screw 2 3 d, the shaft 2 2 is rotated if a certain amount of force is applied, and the friction force is applied if no force is applied. As a result, shaft 22 is fixed.
- Such a mechanism makes it possible to change and adjust the position of the monitor 18 from the substantially vertical position indicated by the dotted line in FIG. 2 to the substantially horizontal position indicated by the solid line, even if it remains at a substantially horizontal position or an inclined position in the middle. That state is maintained.
- the horizontal state of the monitor 18 may be maintained by a click mechanism, a stagger mechanism, or the like.
- the monitor 18 is in a horizontal position, for example, when the examiner is standing on the side of the device 1 and the screen is easy to see. It may be as high as possible.
- the monitor 18 is also in a vertical position, for example, when the examiner sits in front of the device 1 and needs to see the screen easily, so that the screen is slightly inclined (about 15 degrees in angle). There may be.
- FIG. 4 is a schematic configuration diagram of the optical system housed in the measurement unit 13 and the control system of the apparatus 1.
- Optical system Infrared light source for illumination of the anterior segment 50 0
- the anterior segment image of eye E consists of half mirror 51, half mirror 52, and imaging lens 53. Then, the image is picked up by a CCD camera 54, which is an image pickup device. The image of the anterior segment captured by the C C D camera 5 4 is displayed on the monitor 1 8 o
- Fixation target presentation optical system The light of the fixation target 6 6 from the visual light source for fixation target presentation 65 is directed to the eye E through the projection lens 67, the half mirror 52, and the half mirror 51. At the time of eye refractive power measurement, the projection lens 67 is moved in the direction of the optical axis L 1, so that clouding of the eye E is performed.
- Eye refracting optical system Infrared light source for measuring eye refracting power 70 is measured by a slit hole in the rotating sector 7 1, projection lens 7 2, aperture 7 3, half mirror 7 4 and half mirror 5 Through 1 and projected onto the fundus of eye E while being scanned.
- the measurement light reflected from the fundus is received by a light receiving section 77 including a plurality of pairs of light receiving elements via a half mirror 51, a half mirror 74, a light receiving lens 75, and a diaphragm 76.
- This optical power measurement optical system uses the phase difference method as a measurement principle.
- Corneal shape measurement optical system The measurement light from the infrared light source 80 for measuring the cornea shape passes through the spot hole 81 and the collimating lens 82, and the cornea of the eye E Projected on. The measurement light reflected by the cornea is received by the CCD camera 54 via the half mirror 51, the half mirror 52, and the imaging lens 53.
- Four light sources 80 are arranged around the reference optical axis L1 for eye refractive power measurement and corneal shape measurement, two of which are in the horizontal direction of the device and the other two are of the device. In the vertical direction, the respective projection optical axes are arranged at a predetermined angle with respect to the optical axis L 1.
- Alignment optical system The cornea reflection image from the light source 70 is captured by the CCD camera 5 4 via the half mirror 51, the half mirror 52, and the imaging lens 53, and used as alignment indicators in the X and Y directions. It is done. A cornea reflection image by the light source 80 arranged in the horizontal direction is also picked up by the CCD camera 54 and used as an alignment index in the Z direction. The alignment light from the alignment infrared light source 85 in the Z direction is projected onto the cornea of the eye E through the spot hole 86. The cornea reflection image from the light source 85 is captured by the CCD camera 54 via the half mirror 51, the half mirror 52, and the imaging lens 53. Two light sources 85 are arranged around the optical axis L 1, and are arranged so that each projection optical axis intersects the optical axis L 1 at a predetermined angle in the horizontal direction of the apparatus. .
- the position of the cornea reflection image hardly changes even if the working distance of the measuring unit 13 relative to the eye E (distance in the Z direction) changes.
- the light from the light source 85 is a divergent light beam, the position of the cornea reflection image changes when the working distance of the measurement unit 1 3 changes. Therefore, by comparing the interval between the corneal reflection images by the two light sources 80 and the interval between the corneal reflection images by the two light sources 85, it is possible to detect the alignment state of the measuring unit 13 with respect to the eye E in the Z direction. Yes (see US Pat. No. 5,463,430).
- the output of the CCD camera 54 is connected to the image processing / display control unit 1 0 1, and the control unit 1 0 1 is a cornea reflection image for alignment and corneal shape measurement. Is detected. Further, the control unit 101 controls the screen display of the monitor 18.
- the main calculation control unit 1 0 0 includes the control unit 1 0 1, the light receiving unit (light receiving element) 7 7, the moving unit 1 6, the rotary knob 1 5 provided on the joystick 1 4, the monitor 1 8 The switch portions 1 1 0, etc. arranged around are connected.
- Switch 1 1 0 has switch 1 1 0 a for switching the measurement mode, switch 1 1 0 b for switching between automatic alignment and manual alignment, switch 1 1 0 c for printing out measurement results, and data is deleted 1 1 0 d, multiple switches for inputting signals according to each measurement mode 1 2, monitor 1 8 Anterior segment image display direction on clockwise and counterclockwise 9 0 degrees There are provided a plurality of switches for inputting predetermined signals, such as two switches 1 1 1 R and 1 1 1 L for switching to the rotated state.
- control unit 100 has a function for obtaining the eye refractive power based on the output of the light receiving element 77, a function for obtaining the corneal shape based on the corneal reflection image detected by the control unit 101, and the control unit 100.
- FIG. 1 As shown in Fig. 1, have the subject sit on a chair and fix the subject's face with a face support unit 12.
- the examiner usually sits on a chair so as to face the subject with the device 1 in between.
- the monitor 18 is placed in a substantially vertical state so that the screen can be easily seen with the examiner sitting.
- the examiner tilts the joystick 14 to move the moving table 1 1 in the X and Z directions so that the displayed anterior segment image is positioned at the center of the screen. Also, rotate the rotary knob 15 to move the measurement unit 13 in the Y direction.
- Control unit 1 0 0
- the moving unit 16 is driven and controlled based on the cornea reflection image from the light source 70, and the measuring unit 13 is moved in the X and Y directions. Further, the moving unit 16 is driven and controlled based on the cornea reflection images by the light sources 80 and 85 arranged in the horizontal direction, and the measuring unit 13 is moved in the Z direction.
- the control unit 100 automatically issues a trigger signal to perform measurement. When the continuous measurement mode of corneal shape measurement and eye refractive power measurement is set, these measurements are executed continuously.
- the examiner stands on the side of the apparatus 1 and lifts the subject's heel with one hand. At this time, the examiner lifts the frame 20 with the other hand so that the monitor 18 is in a substantially horizontal state.
- the examiner can easily observe the anterior segment image displayed on the monitor 18 while standing on the side of the device 1 and lifting the subject's eyelid.
- a switch unit 110 is provided around the monitor 18, but since it is in a substantially horizontal state integrally with the monitor 18, it can be easily operated.
- the image processing control unit 1 0 1 displays the anterior segment image on the monitor 18 according to the direction. Rotate the direction 90 degrees. That is, when the examiner is standing on the right side of the device 1 as shown in Fig. 5 and presses the switch 1 1 1 R, the display direction of the anterior segment image is rotated 90 degrees clockwise. Switch to state. This makes it easier to see the condition of eye E, such as how the eyelids open, how the eyelashes are engaged, how the pupils open, etc., and appropriate measures can be taken.
- the monitor 18 can also be used when performing the measurement while the examiner stands while facing the subject. Needless to say, it is convenient to be able to be in a substantially horizontal state.
- the above embodiment can be variously modified. For example, as a method of rotating the display direction of the anterior segment image by 9 degrees clockwise and counterclockwise, the monitor 18 itself may be rotated.
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- 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
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/631,158 US7631971B2 (en) | 2004-08-20 | 2005-08-22 | Ophthalmic apparatus |
| KR1020077003507A KR101102404B1 (ko) | 2004-08-20 | 2005-08-22 | 안과 장치 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004241597A JP4587741B2 (ja) | 2004-08-20 | 2004-08-20 | 眼科装置 |
| JP2004-241597 | 2004-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006019195A1 true WO2006019195A1 (ja) | 2006-02-23 |
Family
ID=35907574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/015592 Ceased WO2006019195A1 (ja) | 2004-08-20 | 2005-08-22 | 眼科装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7631971B2 (ja) |
| JP (1) | JP4587741B2 (ja) |
| KR (1) | KR101102404B1 (ja) |
| CN (1) | CN101001566A (ja) |
| WO (1) | WO2006019195A1 (ja) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4964662B2 (ja) * | 2007-04-27 | 2012-07-04 | 株式会社ニデック | 眼科装置 |
| JP5545966B2 (ja) | 2010-02-26 | 2014-07-09 | 株式会社ニデック | 眼科装置 |
| JP6355438B2 (ja) * | 2014-06-05 | 2018-07-11 | キヤノン株式会社 | 眼科測定装置、その制御方法およびプログラム |
| KR101940965B1 (ko) | 2016-12-07 | 2019-01-21 | 스미토모 고무 고교 가부시키가이샤 | 공기입 타이어 |
| CN107320067B (zh) * | 2017-08-05 | 2019-02-05 | 上海新眼光医疗器械股份有限公司 | 眼压仪 |
| CN110037648A (zh) * | 2019-04-25 | 2019-07-23 | 深圳市乐享医疗科技有限公司 | 一种测量眼球突出量的设备和标记定位方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0458204U (ja) * | 1990-09-21 | 1992-05-19 | ||
| JPH09253048A (ja) * | 1996-03-27 | 1997-09-30 | Canon Inc | 眼科検査装置 |
| JP2001046341A (ja) * | 1999-08-12 | 2001-02-20 | Ryusyo Industrial Co Ltd | 眼科測定装置 |
| JP2003290144A (ja) * | 2002-03-29 | 2003-10-14 | Nidek Co Ltd | 眼科撮影装置 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0458204A (ja) | 1990-06-28 | 1992-02-25 | Yokogawa Electric Corp | 光導波路の形成方法 |
| JP3269665B2 (ja) | 1992-07-31 | 2002-03-25 | 株式会社ニデック | アライメント検出装置及び該アライメント検出装置を用いた眼科装置 |
| US5463430A (en) | 1992-07-31 | 1995-10-31 | Nidek Co., Ltd. | Examination apparatus for examining an object having a spheroidal reflective surface |
| JP3450403B2 (ja) * | 1994-01-28 | 2003-09-22 | キヤノン株式会社 | 検眼装置 |
| JP3501527B2 (ja) * | 1994-11-29 | 2004-03-02 | キヤノン株式会社 | 眼科装置 |
| JPH08299274A (ja) | 1995-04-28 | 1996-11-19 | Canon Inc | 検眼装置 |
| JPH09285446A (ja) * | 1996-04-25 | 1997-11-04 | Nikon Corp | 手持ち型眼科装置 |
| JP3676053B2 (ja) | 1997-09-30 | 2005-07-27 | 株式会社ニデック | 眼科装置 |
| JP3655071B2 (ja) * | 1997-10-31 | 2005-06-02 | 株式会社ニデック | 眼屈折力測定装置 |
| JP2001268613A (ja) * | 2000-03-15 | 2001-09-28 | Sony Corp | 携帯情報端末 |
| JP4138432B2 (ja) | 2002-10-08 | 2008-08-27 | 株式会社ニデック | 眼屈折力測定装置 |
| JP2004163816A (ja) * | 2002-11-15 | 2004-06-10 | Seiko Epson Corp | 電子機器、表示制御装置、画像表示装置および画像表示システム |
| JP4126220B2 (ja) * | 2002-11-25 | 2008-07-30 | 株式会社ニデック | 眼科装置 |
-
2004
- 2004-08-20 JP JP2004241597A patent/JP4587741B2/ja not_active Expired - Lifetime
-
2005
- 2005-08-22 CN CNA200580026952XA patent/CN101001566A/zh active Pending
- 2005-08-22 WO PCT/JP2005/015592 patent/WO2006019195A1/ja not_active Ceased
- 2005-08-22 US US11/631,158 patent/US7631971B2/en active Active
- 2005-08-22 KR KR1020077003507A patent/KR101102404B1/ko not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0458204U (ja) * | 1990-09-21 | 1992-05-19 | ||
| JPH09253048A (ja) * | 1996-03-27 | 1997-09-30 | Canon Inc | 眼科検査装置 |
| JP2001046341A (ja) * | 1999-08-12 | 2001-02-20 | Ryusyo Industrial Co Ltd | 眼科測定装置 |
| JP2003290144A (ja) * | 2002-03-29 | 2003-10-14 | Nidek Co Ltd | 眼科撮影装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101102404B1 (ko) | 2012-01-05 |
| US20080297725A1 (en) | 2008-12-04 |
| JP4587741B2 (ja) | 2010-11-24 |
| CN101001566A (zh) | 2007-07-18 |
| KR20070043836A (ko) | 2007-04-25 |
| US7631971B2 (en) | 2009-12-15 |
| JP2006055439A (ja) | 2006-03-02 |
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