WO2005092270A1 - 斜視訓練用虚像表示装置 - Google Patents
斜視訓練用虚像表示装置 Download PDFInfo
- Publication number
- WO2005092270A1 WO2005092270A1 PCT/JP2005/004440 JP2005004440W WO2005092270A1 WO 2005092270 A1 WO2005092270 A1 WO 2005092270A1 JP 2005004440 W JP2005004440 W JP 2005004440W WO 2005092270 A1 WO2005092270 A1 WO 2005092270A1
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- WIPO (PCT)
- Prior art keywords
- training
- virtual image
- strabismus
- display device
- image display
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H5/00—Exercisers for the eyes
Definitions
- the present invention relates to a virtual image display device for strabismus training, which uses the scenery of the external world itself for strabismus correction training.
- Patent Document 1 Japanese Patent Application Laid-Open No. 7-275286 (Page 1-Page 11, Figure 1- Figure 23)
- Patent Document 2 Japanese Patent Application Laid-Open No. 9-38164 (Pages 1 to 11; Fig. 1 to Fig. 9)
- the present invention has been made to solve a powerful problem, and has been developed in daily life.
- the purpose of the present invention is to provide a virtual image display device for strabismus training that enables easy strabismus training without preparing various training contents!
- a virtual image display device for strabismus training that performs strabismus training.
- the apparatus includes: an imaging unit that captures an external world, which can capture an image so that a normal line-of-sight direction is always located at the center of the captured image; and a display unit that displays the external world video captured by the imaging unit.
- An eyepiece optical system having a transparent plate-shaped member arranged in front of the eye so as to face the eye, and a control unit for moving the image displayed on the display unit from a perspective line of sight to a normal line of sight And.
- the eyepiece optical system guides the image of the outside world, which is a virtual image displayed by the display unit, to the eye, guides the light from the outside world to the eye through the plate-shaped member, and guides the real image of the outside world to the eye. Supply.
- FIG. 1 is a configuration diagram of a virtual image display device for strabismus training.
- FIG. 2 is a view showing a virtual image display device for oblique training attached to eyeglasses.
- FIG. 3 is a cross-sectional view including a display unit.
- FIG. 4 is a plan view of a virtual image display device for strabismus training.
- FIG. 5 is a flowchart showing steps of strabismus training using the virtual image display device for strabismus training.
- the present invention is not limited to this embodiment. Further, the present embodiment shows the most preferred embodiment of the present invention, and terms relating to the present invention are not limited thereto.
- FIG. 1 is a configuration diagram of a virtual image display device for strabismus training.
- the virtual image display device 1 for training a strabismus of this embodiment includes a display unit 100 for displaying an image, an eyepiece optical system 101, and a transparent plate-like member 102 holding the eyepiece optical system 101.
- the control unit 110 is connected to the display unit 100, and the imaging unit 111 is connected to the control unit 110.
- the imaging unit 111 is constituted by a video camera such as a CCD camera which also has a solid-state imaging device, and captures an image of a subject and sends video information to the control unit 110. Under the control of the control unit 110 The display unit 100 displays an image.
- the light from the display unit 100 is guided to the eye E by the eyepiece optical system 101 to provide a virtual image of the image displayed by the display unit 100, and the light from the outside is transmitted to the eye E through the plate member 102.
- the virtual image display device 1 for strabismus training can be applied to glasses as shown in FIGS.
- the virtual image display device 1 for strabismus training preferably has a transmittance of 80% or more, and the display unit 100 and the imaging unit 111 of the virtual image display device 1 for squint training are connected to the frame 201 of the glasses 200. It is provided on the upper part on the side to train strabismus.
- an opening / closing lid 170 for closing the eye E is provided on the upper side of the frame 201 on which the strabismus training is not performed, so that the eye E on which the strabismus training is not performed can be easily closed with the opening / closing lid 170. .
- the control unit 110 is provided in a strabismus training device 190, and the strabismus training device 190 is provided with an operation unit 191.
- the strabismus training is performed by operating the operation unit 191.
- FIG. 3 is a cross-sectional view including a display unit.
- the display unit 100 includes a transmissive liquid crystal display (LCD) 11, a housing 12, a prism 13, a light emitting diode (LED) 14, and a lens 15. Become.
- the LCD 11 displays an image to be displayed, and modulates illumination light with the displayed image.
- the housing 12 accommodates and holds the LCD 11, the LED 14, and the lens 15.
- the LED 14 is a light source for illuminating the LCD 11, and the lens 15 is an illumination optical system for uniformly guiding the light emitted by the LED 14 to the entire surface of the LCD 11.
- the configuration of the display unit 100 is not limited to the transmissive LCD, and for example, a reflective LCD may be used.
- Display of an image on the LCD 11 and light emission of the LED 14 are controlled by the control unit 110, perform image processing on image information captured by the imaging unit 111, and supply power and a video signal.
- the prism 13 has a flat plate shape and is made of transparent glass or resin.
- the prism 13 guides light from the LCD 11 to the eye E to display a virtual image of the image displayed on the LCD 11.
- the upper end of the prism 13 has a wedge shape whose edge is thicker than the inner side, and the housing 12 is attached to the prism 13 so as to sandwich the wedge-shaped upper end of the prism.
- the prism 20L has a flat plate shape, and is formed of a single member.
- the prism 20R is also a flat plate, and is composed of a prism 13 and a prism 21 which are not a single member.
- the prism 20L and the prism 21 are made of the same material as the prism 13, and are not bent. There is no difference in folding rate.
- the prism 13 and the prism 21 forming the prism 20R have complementary shapes and are joined so as to form a gap and have a continuous surface. Except that the prism 13 has a wedge-shaped upper end, the prisms 20L and 20R are symmetric like general glasses.
- a user wearing the virtual image display device 1 for oblique vision training in front of the face observes the outside world through the prisms 20L and 20R.
- the lower end of the prism 13 is manufactured in such a manner that the front surface (the surface far from the eye E force) approaches the rear surface (the surface close to the eye E) as the directional force approaches the edge, and is wedge-shaped.
- the front surface of the wedge-shaped portion, that is, the bonding surface with the prism 21 is a flat surface, and the hologram element 22 is formed on this flat surface.
- the hologram element 22 is located just before the eye E when worn.
- the prism 13 and the hologram element 22 constitute the eyepiece optical system 101.
- the prism 13 guides the light from the LCD 11 into the inside through the end face at the upper end, and guides the light to the hologram element 22 while being totally reflected a plurality of times on the front and rear faces.
- the hologram element 22 diffracts the guided light to make it incident on the eye E while making it a light flux close to parallel light. Thereby, a virtual image of the image displayed on the LCD 11 is displayed to the trainee.
- the hologram element 22 hardly acts on light from the outside, and the virtual image is observed overlapping with the center of the image of the outside.
- the hologram element 22 can synthesize light and guides it to the eye E in a state where external light and a virtual image are mixed.
- the transmittance of the hologram element 22 is 80% or more, so that a synthetic image without discomfort is guided to the trainee's eyes, while the trainee can use the virtual image display device 1 for strabismus training. The eye of the trainee wearing the can be observed well.
- the virtual image display device 1 for training for strabismus since the light from the LCD 11 is guided to the hologram element 22 while being reflected inside the prism 13, the size of the prism 20R can be increased.
- the lower end of the prism 13 is a wedge-shaped force. Since the lower end is joined to the prism 21 of the same material, refraction does not occur in light from the outside passing through the lower end of the prism 13. Therefore, the virtual image display device for strabismus training 1 in which the central part of the image of the external world is not distorted or discontinuous can display a high-quality image.
- the LCD 11 has a rectangular shape that is long in the left-right direction, and can display a character string in which a dozen or more characters are arranged in a horizontal direction. For this reason, the trainee can obtain a great deal of information at the same time as the visual ability.
- an image is displayed on the right eye. However, of course, an image may be displayed to the left eye.
- the power of the prism 20R is set according to the trainee's visual acuity.
- the negative power of prism 20R can correct myopia, while the positive power can correct hyperopia.
- the joining surface of the lower end of the prism 13 with the prism 21 is flat, so that the hologram element 22 can be easily formed. It should be noted that if correction of visual acuity is not necessary or if a plurality of persons use it, and correction is not necessary, it is not necessary to provide power, and in that case, the prism 21 can be omitted.
- the virtual image display device for strabismus training for training the right eye is described. However, the present invention is not limited to this, and can be similarly applied to a virtual image display device for left eye squint training.
- FIG. 4 is a configuration diagram of a virtual image display device for strabismus training.
- the virtual image display device 1 for strabismus training according to the present embodiment is mounted on the head of the trainee 300, and the trainee 300 has, for example, a normal left eye E but a right eye E.
- the imaging unit 111 can perform imaging so that the direction in which the eyes should be originally directed is always located at the center of the captured image.
- the direction in which the eyes should be turned is the direction of the normal gaze, that is, the direction in which the eyes should be turned.
- the direction of the image pickup unit 111 can be fixed by the positional relationship with the frame 201.
- the control unit 110 displays the image Z displayed on the display unit 100 so as to move from the line-of-sight direction L1 in the oblique state to the normal line-of-sight direction L2.
- the control unit 110 is provided with a line-of-sight direction storage unit 110a that stores the normal line-of-sight direction L2 in advance.
- the normal line-of-sight direction L2 is determined and stored in advance by diagnosis, or designated by a trainer such as a doctor.
- the normal gaze direction L2 is stored.
- the gaze direction storage means 11 Oa has a function of storing an undesired gaze direction to which the trainee's eye E normally faces.
- the control unit 110 moves the image Z displayed on the display unit 100 from the sight line direction L1 in the oblique state to the normal sight line direction L2 stored in advance, and easily changes the sight line in the oblique state into the normal line of sight direction L2. Training can be provided.
- the virtual image display device 1 for strabismus training has a line-of-sight detecting means S1 for detecting a line-of-sight direction L1 in a squint state, and the line-of-sight detecting means S1 is attached to the frame 201 of the glasses 200. It is.
- the line-of-sight detection means SI detects the line-of-sight direction of the oblique state based on the direction of the eye E, sends this detection information to the control unit 110, and uses the movement of the eye E with the oblique line to determine whether or not to perform the strabismus correction training. be able to.
- the line-of-sight detecting means S1 for example, a detector that irradiates an eyeball with infrared rays and checks the movement of the eyeball is used.
- a target marker that moves the image Z from the oblique line of sight to the normal line of sight is set as an external object.
- the control unit 110 includes a training pass determination unit 110b.
- the training pass determination unit 110b includes a subject Y in a normal line-of-sight direction and a target sign of an image Z moving from a perspective line of sight to a normal line-of-sight direction. Pass judgment is made based on the overlap with the subject.
- the target marker that moves the image Z from the oblique line-of-sight direction L1 to the normal line-of-sight direction L2 is an external object, the object Y in the normal line-of-sight direction, and the oblique line-of-sight direction.
- the pass judgment is made based on the overlap with the subject as the target marker moving in the normal line-of-sight direction L2 from L1.
- the power can also make a pass judgment with various target signs.
- the pass judgment is made by comparing the detection result by the line-of-sight detecting means S1 with the record of the normal line-of-sight direction.
- the virtual image display device for strabismus training 1 has a pass result notifying means 160 for notifying the result of the pass judgment, and the pass result notifying means 160 is a mechanism for playing sound or a mechanism for playing video. Be composed.
- the virtual image display device 1 for strabismus training has a selection unit 161 for selecting whether or not to perform strabismus training again, and the strabismus training can be performed again by a simple operation by the selecting unit 161.
- the selection means 161 is configured so that the next operation can be selected by the command menu displayed on the control panel such as start, next, repeat, and end.
- the imaging unit 111 can shoot such that the normal line-of-sight direction is always located at the center of the captured image, and can change the image displayed on the display unit 100 from the normal line-of-sight direction to the normal line-of-sight direction. By moving in the direction of the line of sight, it is possible to perform strabismus training in daily life without preparing special training content.
- control unit 110 has a training state storage unit 110c that stores a strabismus training state, and the training state storage unit 110c stores a strabismus training state.
- the information on the strabismus training state stored in the control unit 110 can be output, and can be taken into a personal computer or the like and analyzed.
- FIG. 5 is a flowchart showing steps of strabismus training by the virtual image display device for strabismus training.
- initialization is performed (step S1), and a training request signal is output by pressing the operation unit training button.
- Step S2 an image of an external subject is captured by the imaging unit 111 (Step S3).
- the external image captured by the imaging unit 111 is displayed in an undesired gaze direction where the eyes of the trainee (strabismus patient) normally face. Since the virtual image display device 1 for strabismus training can see the outside world, as shown in FIG. 4, the scene of the outside world at the center of the correct line of sight and the captured image (virtual image) captured by the imaging unit 111 are displayed. The center of) is shifted as a positional relationship!
- the imaging unit 111 shoots the image so that the normal line-of-sight direction is always located at the center of the captured image, and displays the image Z displayed on the display unit 100 from the line-of-sight direction L1 in the oblique state to the normal line-of-sight direction L2.
- the gaze detection means S 1 captures the movement of the gaze, and the virtual image displayed on the virtual image display device for oblique training 1 follows the gaze of the trainee. Then, the trainee moves in the line of sight of the trainee. The trainee makes an effort so that the scenery in the normal gaze direction and the scenery in the center of the virtual image overlap (step S4).
- Whether or not the two overlap with each other is determined by comparing the detection result of the gaze direction in the oblique state with the recording of the normal gaze direction, and determining whether the subject Y in the normal gaze direction and the gaze direction in the oblique state are normal.
- a pass determination is made based on the overlap of the image Z moving in the line of sight with the subject as the target marker (step S5).
- Training can be performed (step S6). For each training session, record where the gaze of the trainee started and for how long the pass was judged, and also record the movement of the gaze coordinately. This record can be imported to a computer and analyzed.
- the present invention includes the following configurations.
- a virtual image display device for strabismus training is an imaging unit that images the outside world, a display unit that displays images captured by the imaging unit, an eyepiece optical system, and a transparent plate-shaped part that holds the eyepiece optical system. Material.
- the virtual image display device for strabismus training is used in a state where the eyepiece optical system is located in front of the eye and the plate-shaped member faces the eye, and the light from the display unit is directed to the eye by the eyepiece optical system.
- light from the outside is transmitted through the plate-shaped member to the eye to provide an image of the outside.
- the imaging unit is capable of performing imaging such that a normal line-of-sight direction is always located at the center of a captured image.
- a control unit configured to move a video displayed on the display unit from a perspective line of sight to a normal line of sight.
- the imaging unit can shoot the image so that the normal gaze direction is always located at the center of the captured image, and can display the image displayed on the display unit in the oblique gaze direction force in the normal gaze direction.
- you can easily perform strabismus training in your daily life without preparing special training content.
- the virtual image display apparatus for strabismus training according to (1) above has a sight line direction storage unit that stores the normal sight line direction in advance, and the control unit reads the image from the sight line direction in the oblique state. Move to the stored normal gaze direction.
- the virtual image display device for strabismus training according to (1) above has a sight line direction detecting means for detecting the sight line direction in the squint state, and the sight line direction detection means outputs the sight line direction detection information in the oblique state. Send to the control unit.
- the movement of the strabismus eye can be used for pass / fail determination of strabismus correction training and the like.
- the virtual image display device for strabismus training according to the above (1) or (2) characterized in that a target sign that moves the virtual image from a line of sight in a squint state to a normal line of sight is an external object.
- the scenery of the outside world itself can be used for strabismus correction training, and the training can be performed without getting tired.
- the virtual image display device for strabismus training comprises: a subject in a normal gaze direction; and a target target moving from the squint gaze direction to the normal gaze direction.
- Training pass determination means for determining a pass based on the overlap with the subject as insight.
- the pass determination unit compares the result of detection by the line-of-sight detection unit with the record of the normal line-of-sight direction, and determines whether or not both directions are preset. If they match, a pass is determined.
- the virtual image display device for strabismus training according to any one of the above (1) to (6) has a pass result notifying means for notifying the result of the pass judgment.
- the virtual image display device for strabismus training according to any one of the above (1) to (6) has a selection means for selecting whether or not to repeat the strabismus training.
- the strabismus training can be performed again by a simple operation.
- the virtual image display device for strabismus training according to any one of (1) to (8), further comprising an opening / closing lid for closing an eye on a side on which the strabismus training is not performed.
- the eye on the side on which strabismus training is not performed can be easily closed by the open / close lid.
- the virtual image display device for strabismus training according to any one of (1) to (9) above, further comprising a training status storage unit for storing the strabismus training status, and outputting information on the strabismus training status. It is possible.
- the present invention can be applied to the following virtual image display device for strabismus training. That is, in the virtual image display device for oblique training, the eyepiece optical system is used in a state where the eyepiece optical system is located in front of the eye and the plate-shaped member faces the eye, and light from the display unit is guided to the eye by the eyepiece optical system for display. A virtual image of the image displayed by the unit; and light from the outside is transmitted through the plate-like member to the eyes to provide an image of the outside.
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Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-090475 | 2004-03-25 | ||
JP2004090475A JP2005270451A (ja) | 2004-03-25 | 2004-03-25 | 斜視訓練用虚像表示装置 |
Publications (1)
Publication Number | Publication Date |
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WO2005092270A1 true WO2005092270A1 (ja) | 2005-10-06 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/004440 WO2005092270A1 (ja) | 2004-03-25 | 2005-03-14 | 斜視訓練用虚像表示装置 |
Country Status (3)
Country | Link |
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US (1) | US20050213035A1 (ja) |
JP (1) | JP2005270451A (ja) |
WO (1) | WO2005092270A1 (ja) |
Families Citing this family (20)
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US20070216865A1 (en) * | 2002-02-08 | 2007-09-20 | Novavision, Inc. | Process and Device for Apportioning Therapeutic Vision Stimuli |
US7753524B2 (en) * | 2002-02-08 | 2010-07-13 | Novavision, Inc. | Process and device for treating blind regions of the visual field |
US7682021B2 (en) | 2002-02-08 | 2010-03-23 | Novavision, Inc. | System and methods for the treatment of retinal diseases |
US7642990B2 (en) * | 2004-06-15 | 2010-01-05 | Novavision, Inc. | Method and device for guiding a user's head during vision training |
US7594728B2 (en) * | 2005-12-16 | 2009-09-29 | Novavision, Inc. | Adjustable device for vision testing and therapy |
WO2008005848A2 (en) * | 2006-06-30 | 2008-01-10 | Novavision, Inc. | Diagnostic and therapeutic system for eccentric viewing |
US20080077437A1 (en) * | 2006-07-25 | 2008-03-27 | Novavision, Inc. | Process and Method for Providing Incentives to Increase Vision-Therapy Performance |
EP2076230A2 (en) | 2006-07-25 | 2009-07-08 | Novavision, Inc. | Dynamic stimuli for visual field testing and therapy |
EP2114517B1 (en) * | 2007-01-22 | 2017-07-12 | NovaVision Inc. | Device for treating human vision using combined optical and electrical stimulation |
US7543938B2 (en) * | 2007-09-17 | 2009-06-09 | Tsutomu Nakada | Methods and devices for prevention and treatment of myopia and fatigue |
CN101695463B (zh) * | 2009-10-24 | 2011-09-28 | 黄维克 | 具有视觉训练功能的镜架 |
GB201008338D0 (en) * | 2010-05-19 | 2010-07-07 | Sec Dep For Innovation Univers | Infinity image hologram |
KR101962989B1 (ko) * | 2011-09-07 | 2019-03-27 | 노바사이트 리미티드 | 시각 장애를 치료하기 위한 방법 및 시스템 |
JP6026836B2 (ja) * | 2012-09-28 | 2016-11-16 | パイオニア株式会社 | 画像表示装置、制御方法、プログラム及び記憶媒体 |
JP6036291B2 (ja) * | 2012-12-28 | 2016-11-30 | セイコーエプソン株式会社 | 表示装置、表示システム、および、表示装置の制御方法 |
CN105832502B (zh) * | 2016-03-15 | 2018-01-02 | 广东卫明眼视光研究院 | 智能视觉功能训练方法及训练仪 |
CN106725280B (zh) * | 2016-12-22 | 2018-06-05 | 首都医科大学附属北京同仁医院 | 一种斜视度测量装置 |
EP3420889B1 (en) * | 2017-06-28 | 2020-01-15 | Vestel Elektronik Sanayi ve Ticaret A.S. | Apparatus for checking the eyesight of a user |
KR102332976B1 (ko) * | 2018-11-16 | 2021-12-01 | 고려대학교 산학협력단 | 시야 교정 장치, 시야 교정 방법, 및 컴퓨터 판독 가능한 저장 매체 |
CN115643395A (zh) * | 2022-12-23 | 2023-01-24 | 广州视景医疗软件有限公司 | 一种基于虚拟现实的视觉训练方法和装置 |
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DE4417762C1 (de) * | 1994-05-20 | 1995-10-12 | Juergen Prof Dr Med Lamprecht | Vorrichtung und Verfahren zum Projizieren und Empfangen von Bildinformation mittels eines Bildschirms |
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2005
- 2005-03-11 US US11/077,847 patent/US20050213035A1/en not_active Abandoned
- 2005-03-14 WO PCT/JP2005/004440 patent/WO2005092270A1/ja active Application Filing
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JPH0315062Y2 (ja) * | 1984-11-26 | 1991-04-03 | ||
JPS61118328U (ja) * | 1985-01-11 | 1986-07-25 | ||
JPH0576573A (ja) * | 1991-06-25 | 1993-03-30 | Shimadzu Corp | 周辺視力訓練装置 |
JPH0938164A (ja) * | 1995-07-28 | 1997-02-10 | Sony Corp | 眼球運動訓練装置および方法 |
JPH0956764A (ja) * | 1995-08-18 | 1997-03-04 | Sony Corp | 斜視訓練装置 |
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JP2005270451A (ja) | 2005-10-06 |
US20050213035A1 (en) | 2005-09-29 |
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