WO2007004580A1

WO2007004580A1 - Training instrument for recovering sight

Info

Publication number: WO2007004580A1
Application number: PCT/JP2006/313133
Authority: WO
Inventors: Toshiharu Satoh; Eiichi Ookawa; Hidenori Horie
Original assignee: Matsushita Electric Industrial Co., Ltd.; Technomaster Co., Ltd.
Priority date: 2005-07-05
Filing date: 2006-06-30
Publication date: 2007-01-11

Abstract

A training device for recovering sight on which a trainee can concentrate one’s senses only to a sight training image easily. The training device comprises a display section for displaying a mark, and a display control section for controlling display at the display section, wherein the display control section varies at least one of the lightness and chroma of the color of a mark depending on the position of the trainee’s eye and the position of the display section.

Description

Specification

Vision recovery training device

Technical field

The present invention relates to a visual acuity recovery training device that performs training of an imaging adjustment function of an eye.

Background art

[0002] In general, it is considered that the decrease in visual acuity is caused by a decrease in the imaging adjustment function of the eye due to the accommodation tension or weakness of the accommodation muscle (ciliary muscle) of the eye. By training these muscles, recovery of vision can be expected. Conventionally, in order to restore visual acuity, a method of improving visual acuity by activating the ciliary muscle by training and activating the accommodation function has been implemented.

[0003] As a conventional technique, a visual acuity recovery training apparatus that attempts to improve the visual acuity improvement effect by activating the function of the regulating muscle has been disclosed (for example, see Patent Document 1). This visual acuity recovery device reciprocates the gaze board on which the mark is displayed, and moves the mark close to or away from the trainee. When the trainer of this device gazes at this mark, the focus of the eye is continuously trained between the short distance and the long distance, so that the adjusting muscle is efficiently trained.

[0004] With this type of visual acuity recovery device, various effects have been devised because the training effect cannot be obtained unless the trainee gazes at the mark. For example, Patent Document 1 describes a configuration in which the entire apparatus is shaped like a case, and a gaze plate on which a mark is displayed reciprocates in a cavity to reduce disturbance and make it easier to gaze.

[0005] The conventional vision recovery training device described above has a gaze board itself and a support that supports the gaze board that are reciprocated to enter the field of view, and is sufficient to make the trainee aware of only the mark. I can't say that. As a trainee's consciousness, the consciousness tends to be distracted with respect to the mark that is approaching or away from it. Also, if the concentration of the consciousness toward the approaching mark is too strong, the trainee's feeling of fatigue increases. In some cases, myopia tends to be strong.

[0006] In addition, a combination of perspective training for visual acuity and training for the size, direction, brightness, and rotation of marks appearing in images. In addition, a visual acuity recovery training apparatus that repeatedly and continuously performs various visual acuity correction training without requiring lens replacement or the like is disclosed (for example, see Patent Document 2). This is a visual correction training by displaying or moving the mark from large to small, small to large, moving it to a bright or dark image, or rotating it. This technique seeks to obtain a training effect by stimuli given to the eyes by changes in the mark. In this case, there is a concern that an abrupt change such as lucidity may increase the fatigue of trainees who are less focused on the mark.

[0007] Patent Document 1: Japanese Patent Laid-Open No. 6-339501

Patent Document 2: Japanese Patent Laid-Open No. 2003-325606

Disclosure of the invention

Problems to be solved by the invention

[0008] Therefore, it is required to always stabilize the degree of concentration of the consciousness with respect to the mark so that the burden on the trainee is reduced and the effect of the training can be expected more.

[0009] The present invention has been made in view of the above-described conventional circumstances, and provides a visual acuity recovery training device capable of efficiently concentrating a trainee's consciousness on a visual acuity training image to be watched and efficiently performing visual acuity recovery training. With the goal.

Means for solving the problem

[0010] The vision recovery training device of the present invention includes a display unit that displays a vision training image and a display control unit that controls display of the display unit, and the display control unit controls the brightness of the color of the vision training image. Alternatively, at least one of the saturation is changed according to the optical distance between the trainee's eye position and the display unit position.

[0011] According to the above configuration, the trainer can easily concentrate his / her consciousness only on the vision training image. In addition, by stabilizing the degree of concentration, it is possible to reduce the burden on the trainee, such as fatigue, and improve the training effect.

[0012] In addition, the visual acuity recovery training apparatus of the present invention includes a display unit that displays an image for visual acuity training, a display control unit that controls display of the display unit, and a space inside the housing. A brightness control unit that changes the brightness according to the optical distance between the trainee's eye position and the display unit position. [0013] According to the above configuration, the trainer can easily concentrate his / her consciousness only on the vision training image. In addition, by stabilizing the degree of concentration, it is possible to reduce the burden on the trainee, such as fatigue, and improve the training effect.

[0014] In addition, in the visual acuity recovery training device of the present invention, the display control unit causes the visual training image to be projected on the retina of the trainer at a certain size according to the optical distance. The display size of is changed.

[0015] According to the configuration described above, the size of the graphic image formed on the retina is constant, so that the regulatory muscle can be efficiently trained.

[0016] The vision recovery training device of the present invention includes a gaze unit for displaying a vision training image in the casing, and the colors existing in the internal space of the casing are all the same color except for the vision training image. There is.

[0017] According to the above configuration, since the colors existing in the internal space of the housing are all the same color except for the vision training image, the trainer easily concentrates the consciousness only on the vision training image. be able to.

[0018] In addition, the visual acuity recovery training device of the present invention projects a visual training image on the retina of the trainer at a certain size according to the optical distance between the trainee's eye position and the position of the gaze unit. As shown, a display control unit is provided for changing the display size of the training image.

[0019] According to the above configuration, the size of the figure formed on the retina is constant, so that the regulatory muscle can be efficiently trained.

[0020] In the visual acuity recovery training device of the present invention, the gaze unit is installed in close contact with the inner wall of the housing.

[0021] According to the above configuration, since the presence of the gaze unit itself can be eliminated, it is possible to concentrate and train without being aware of the change in the size of the gaze unit. Therefore, it is possible to perform visual acuity recovery training efficiently without reducing the concentration of the trainee.

Furthermore, the same color of the vision recovery training device of the present invention is black.

[0023] According to the above configuration, the trainer can easily concentrate the consciousness only on the mark, so that it is possible to efficiently perform the visual acuity recovery training.

The invention's effect [0024] According to the present invention, the trainer can easily concentrate his / her consciousness only on the vision training image. In addition, by stabilizing the degree of concentration, it is possible to reduce the burden on the trainee such as fatigue and improve the training effect.

Brief Description of Drawings

FIG. 1 is a perspective view for explaining an example of a schematic configuration of a main part of the visual acuity recovery training device according to the first embodiment of the present invention.

FIG. 2 is a diagram illustrating a cross-sectional state of the visual acuity recovery training device according to the first embodiment of the present invention. FIG. 3 is an outline of a control device that controls the operation of the visual acuity recovery training device according to the first embodiment of the present invention. Functional block diagram

FIG. 4 is a diagram showing an example of a mark displayed when the gaze unit of the visual acuity recovery training device according to the first embodiment of the present invention is moved.

FIG. 5 is a diagram showing a change in the brightness of the mark 6 with respect to the optical distance between the eyepiece 3 and the mark 6 in the first embodiment of the visual acuity recovery training apparatus of the present invention.

[Fig. 6] A diagram showing an example of the relationship between the distance and the brightness when the brightness in the housing internal space 1 is changed in inverse proportion to the distance between the eyepiece 3 and the mark 6

FIG. 7 is a diagram showing a change in lightness of the color of the mark 6 with respect to the optical distance between the eyepiece 3 and the mark 6 of the visual acuity recovery training device according to the first embodiment of the present invention.

FIG. 8 is a graph showing a change in color saturation of the mark 6 with respect to the distance between the eyepiece 3 and the mark 6 of the visual acuity recovery training device according to the first embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a schematic configuration of the main part of the visual acuity recovery device according to the second embodiment of the present invention.

FIG. 10 is a perspective view for explaining a schematic configuration of main parts of a vision recovery training device according to a fourth embodiment of the present invention.

Explanation of symbols

[0026] 1 Internal space

2 Gaze section moving means storage

3 Eyepiece 6 mark

7 Prop

8 pedestal

9 pulley

10 Benole

11 Motor

12 Main control unit

13 Gaze control unit

14 Gaze display controller

15 Operation unit

16 Reflection means

17 Mark display area

BEST MODE FOR CARRYING OUT THE INVENTION

[0027] (First embodiment)

FIG. 1 is a perspective view for explaining an example of a schematic configuration of a main part of the visual acuity recovery training device according to the first embodiment of the present invention. In FIG. 1, the apparatus is roughly divided into two components, a housing internal space 1 and a gaze unit moving means storage unit 2. This device is configured so that the trainee can train without being affected by disturbances other than the gaze unit 4, such as the gaze unit moving means and the scenery around the device. An eyepiece 3 is provided on one of the wall surfaces of the housing internal space 1, and the gaze part 4 is arranged at a position where the eyepiece 3 can see the eyepiece 3. The gaze unit 4 has a mark 6 for the trainee to gaze at. At least one eyepiece 3 is provided for the trainee to look at the mark 6 with eyes on, and preferably two.

[0028] In the present embodiment, the gaze unit 4 can change the mark 6 for the trainee to gaze appropriately, for example, CRT (Cathode Ray Tube), liquid crystal display, organic EL (Electro-Luminescence), etc. The display unit 5 is an electronic display unit such as a display using the light emitting element. The gaze unit 4 reciprocates by the gaze unit moving means housed in the gaze unit moving means storage unit 2 to change the distance from the eyepiece unit 3. The gaze unit moving means is, for example, The pulley 9 and the belt 10 constitute a belt conveyor, the belt 10 and the gaze unit 4 are connected, and the gaze unit 4 is reciprocated by driving the pulley 9 by changing the rotation direction with, for example, the motor 11 or the like. Further, it can be realized by connecting the nut of the ball screw and the gaze unit 4 and reciprocating the gaze unit 4 by changing the rotation direction with the motor 11 or the like and rotating it. The boundary between the housing internal space 1 and the gaze unit moving means storage unit 2 is provided with a minimum opening 2k necessary for reciprocating the gaze unit 4 and the gaze unit moving means.

[0029] FIG. 2 is a diagram illustrating a cross-sectional state of the visual acuity recovery training device according to the first embodiment of the present invention. In FIG. 2, the gaze unit 4 is fixed to the base 8 using a support column 7 or other appropriate support means. The pedestal 8 is placed on a conveying means including a pulley 9 and a belt 10. The operation of the motor 11 and the display of the gaze unit 4 composed of electronic display means are controlled by a control device 30 described later. Although not shown, the control device 30 is connected to the display unit 5, the motor 11, and the like through signal lines for transmitting and receiving control signals.

FIG. 3 shows a schematic functional block diagram of a control device that controls the operation of the visual acuity recovery training device according to the first embodiment of the present invention. The control device 30 includes a main control unit 12, a gaze unit movement control unit 13, a gaze unit display control unit 14, and an operation unit 15. The main control unit 12 controls the operation of the entire vision recovery training device. The main control unit 12 controls the gaze unit movement control unit 13 and the gaze unit display control unit 14 based on an instruction from the operation unit 15. The gaze unit movement control unit 13 outputs a drive signal for the motor 11 to control the movement of the gaze unit 4. At that time, information corresponding to the setting of the operation unit 15 is acquired from the main control unit 12, and the movement range and movement speed of the gaze unit 4 are controlled. The gaze unit 4 may move continuously or intermittently. The gaze unit display control unit 14 controls the display of the display unit 5 including electronic display means such as a display using a light emitting element such as a CRT, a liquid crystal display, and an organic EL. The gaze unit display control unit 14 changes at least one of the brightness and saturation of the color of the mark 6 displayed on the display unit 5 according to the optical distance between the trainee's eye position and the display unit 5 position. Let The brightness or saturation of the color of the mark 6 may be changed by changing the image signal, or the brightness or saturation of the color of the mark 6 may be changed by changing the brightness of the display unit 5. Good. The gaze unit display control unit 14 displays the mark 6 having a size proportional to the optical distance between the eyepiece unit 3 and the gaze unit 4. Information on the optical distance between the eyepiece unit 3 and the gaze unit 4 is obtained from the main control unit 12. Data for displaying the mark 6 having a size proportional to the optical distance between the eyepiece 3 and the gaze unit 4 is prepared and stored in advance in a storage means (not shown) for storing operation information and the like. You can select and use the ones you have selected on the operation unit 15, or you can use the trainer's desired mark 6 from the operation unit 15. In that case, it is necessary to calculate the data for displaying the mark 6 whose size is proportional to the optical distance between the eyepiece 3 and the gaze unit 4 each time. Any mark 6 may be used as long as it is easy for the trainer to focus on the eyes, such as characters, figures, symbols, images, etc.

[0032] When the visual acuity recovery training is performed using the first embodiment of the visual acuity recovery training apparatus shown in FIG. 1, the trainee looks at the inside of the housing internal space 1 from the eyepiece 3 and on the gaze 4 Pay close attention to mark 6. Since the position of the mark 6 changes as the gaze unit 4 moves, the trainee sees the mark 6 at a different position. Therefore, it is necessary to focus the eye in response to the change in the position of the mark 6, and the imaging adjustment function is improved by operating the imaging adjustment function of the eye such as the ciliary muscle. The optical distance between the trainee's eyes and the mark 6 is preferably varied between the near point distance and the far point distance of a normal eyesight person.

[0033] FIG. 4 is a diagram illustrating an example of a mark displayed when the gaze unit of the visual acuity recovery training device according to the first embodiment of the present invention is moved. When the gaze unit 4 is moved, FIG. The trainees will see (a) the closest position, (b) an intermediate position between the closest position and the farthest position, and (c) the mark 6 displayed at each position of the farthest position. In this way, when marks 6 with similar shapes are displayed with a size proportional to the distance from the trainee, even if the distance and the size and shape of the mark 6 visible to the trainee change, The amount of information input to the trainer's brain does not change, and the eyes can be focused easily.

Furthermore, in the visual acuity recovery training device of the first embodiment, all the wall surfaces constituting the housing internal space 1 and the color of the gaze unit 4 other than the mark 6 are all black. In other words, everything that enters the trainee's field of view other than Mark 6 is the same black color. In this way, by using a color other than black only for the mark 6, the trainer can visually recognize as if only the mark 6 is reciprocating in the interior space 1 of the housing. Mark 6 This makes it easier to focus the consciousness only on the subject, thus improving the training effect.

[0035] In the first embodiment, only the mark 6 is displayed in a color other than black on the display unit 5 composed of electronic display means, so that the interior of the dark housing that is a shielded space other than the eyepiece unit 3 is used. Even in the space 1, the mark 6 can be visually recognized by the light emitted by the mark 6 displayed on the display unit 5.

FIG. 5 shows a change in the brightness of the mark 6 with respect to the optical distance between the eyepiece 3 and the mark 6 of the visual acuity recovery training apparatus according to the first embodiment of the present invention. In the present embodiment, the actual distance between the eyepiece 3 and the mark 6 is equal to the optical distance. The optical distance between the eyepiece 3 and the mark 6 is approximately equal to the optical distance to the mark 6 of the trainee. When the brightness of the mark 6 displayed on the display unit 5 is always constant, the mark 6 is recognized as dark when the mark 6 moves away from the trainee's eyes, and the mark 6 is recognized as bright when the mark 6 approaches.

[0037] The change in the brightness perception of the trainee's mark 6 induces the trainee's feeling of fatigue and causes a change in the degree of concentration on the mark 6. In general, when a person feels that Mark 6 is brighter by approaching a force that tends to concentrate on an approaching movement than a moving away, the feeling that Mark 6 is closer than it actually is In addition, there is a case where the concentration of consciousness with respect to brightness works, and the degree of concentration becomes excessive and the tendency to myopia increases.

Therefore, as shown in FIG. 5, by changing the brightness of the mark 6 in proportion to the distance between the eyepiece 3 and the mark 6, the trainer's recognition of the brightness of the mark 6 is stabilized. In addition to reducing the feeling of fatigue, the degree of concentration on Mark 6 is also stable, so training can be carried out efficiently. Note that the change in brightness of mark 6 may be a stimulus to the eyes of the trainee because a stepwise change in brightness, which is preferable to a linear continuous change as shown in Fig. 5, may occur. May cause an increase in concentration and disturbance of concentration. How to change the brightness, that is, the brightness change of the mark 6 at the closest position corresponding to the intercept of the graph of FIG. 5 and the brightness change corresponding to the inclination of the graph of FIG. The preference can be selected by setting from the operation unit 15 in FIG. The gaze unit display control unit 14 changes the brightness of the mark 6 based on the setting of the operation unit 15.

[0039] FIG. 6 shows the change in brightness in the housing internal space 1 in inverse proportion to the distance between the eyepiece 3 and the mark 6. An example of the relationship between the distance and the brightness in the case of being performed is shown. Instead of changing the brightness of the mark 6 based on the setting of the operation unit 15, the gaze unit display control unit 14 uses an illumination or the like in the interior space of the housing 1 in inverse proportion to the distance between the eyepiece 3 and the mark 6. The brightness of the inside may be changed according to the optical distance between the eyepiece 3 and the mark 6. In this case, the change in brightness in the housing internal space 1 is preferably a linear continuous change. Also, the brightness of mark 6 may be changed as shown in Fig. 5 to create a state where it is easier for the trainee to concentrate by combining with the brightness in the internal space 1 of the housing. This may be done by changing the brightness in the internal space 1 without changing the brightness of the housing. The brightness of the internal space 1 of the housing is controlled by, for example, a lighting device having a light control function, and when the mark 6 is displayed by the gaze display control unit 14 in FIG. It's good to control them as a whole. In addition, it can be controlled with a separate brightness control unit.

FIG. 7 shows changes in the color brightness of the mark 6 with respect to the optical distance between the eyepiece 3 and the mark 6 of the visual acuity recovery training apparatus according to the first embodiment of the present invention. In the first embodiment, the actual distance between the eyepiece 3 and the mark 6 is equal to the optical distance. The optical distance between the eyepiece 3 and the mark 6 is approximately equal to the optical distance between the trainee's eyes and the mark 6. As shown in Fig. 7, by changing the brightness of the color of the mark 6 in proportion to the distance between the eyepiece 3 and the mark 6, the brightness of the color of the mark 6 especially for the movement of the mark 6 approaching The effect of reducing the stimuli received by the trainee's eyes is to lower the level. As a result, excessive concentration on the approaching mark 6 can be suppressed, fatigue can be reduced, and the concentration of the trainer on the mark 6 can be stabilized and training can be performed efficiently.

[0041] It should be noted that the change in brightness of the color of the mark 6 is preferably a linear continuous change as shown in FIG. A gradual change can be a stimulus to the trainee's eyes, which can lead to increased fatigue and disturbed concentration. Regarding how to change the lightness, that is, the lightness of the color of the mark 6 at the closest position corresponding to the intercept of the graph in FIG. 7 and the degree of change in lightness corresponding to the slope of the graph in FIG. The preference can be selected by setting from the operation unit 15 in FIG. Based on the setting of the operation unit 15, the gaze unit display control unit 14 changes the lightness of the color of the mark 6.

FIG. 8 shows the relationship between the eyepiece 3 and the mark 6 of the visual acuity recovery training device according to the first embodiment of the invention. Indicates the change in color saturation of mark 6 with distance. In the first embodiment, the actual distance between the eyepiece 3 and the mark 6 is equal to the optical distance, and the optical distance between the eyepiece 3 and the mark 6 is equal to the optical distance between the trainee's eyes and the mark 6. It is roughly equal to the distance. As shown in Fig. 8, by changing the saturation of the color of the mark 6 in proportion to the distance between the eyepiece 3 and the mark 6, the color of the mark 6 in particular for the movement of the mark 6 approaching By reducing the saturation of the training, it is effective in reducing the stimuli experienced by the trainee's eyes. As a result, excessive concentration on the approaching mark 6 can be suppressed, fatigue can be reduced, and the concentration level of the trainer on the mark 6 can be stabilized and training can be performed efficiently.

[0043] It should be noted that the change in saturation of the color of the mark 6 may be a stimulus to the trainee's eyes because a stepwise change in which a linear continuous change as shown in Fig. 8 is preferred may occur. It may induce an increase in feeling and disturbance of concentration. How to change the saturation, that is, the saturation of the color of mark 6 at the closest position corresponding to the intercept of the graph in FIG. 8 and the degree of change in saturation corresponding to the slope of the graph in FIG. This can be selected by setting the trainer's preference from the operation unit 15 shown in FIG. Based on the setting of the operation unit 15, the gaze unit display control unit 14 changes the brightness of the mark 6.

[0044] (Second Embodiment)

FIG. 9 shows a cross-sectional state representing a schematic configuration of the main part of the visual acuity recovery device according to the second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that the second embodiment has reflecting means 16 such as a plane mirror in the gaze unit 4 that reciprocates, and a mark 6 for a trainee to gaze at. The mark 6 on the mark display unit 17 is displayed by the reflecting means 16 on the gaze unit 4 as a reflected image from the eyepiece unit 3. As indicated by the broken line, the light 17h of the mark 6 on the mark display portion 17 is reflected by the reflecting means 16 and enters the eyepiece portion 3 as incident light 17i. Light passing distance force from the mark 6 of the mark display unit 17 reflected by the reflecting means 16 to reach the eyepiece 3 The optical distance from the eyepiece 3 to the mark 6 and the reflecting means on the gaze unit 4 As 16 moves, the optical distance from eyepiece 3 to mark 6 changes. The actual distance from the eyepiece part 3 to the gaze part 4 having the reflecting means 16 can be made shorter than the optical distance from the eyepiece part 3 to the mark 6 by using light reflection. Therefore, the apparatus can be reduced in size. Real In the embodiment, by changing the brightness, color brightness, and color saturation of the mark 6 in proportion to the optical distance between the eyepiece 3 and the mark 6, the same effect as described in the first embodiment is obtained. The effect of can be obtained. When the interior space 1 is brightened by illumination, etc., the brightness in the interior space 1 can be changed in inverse proportion to the optical distance between the eyepiece 3 and the mark 6. The same effects as those described in the first embodiment can be obtained.

In the first embodiment and the second embodiment, the configuration in which the two components of the housing internal space 1 and the gaze unit moving means storage unit 2 are clearly separated has been described. This configuration has the advantage that it is easy to increase the concentration of consciousness on the mark 6 because the trainer is less susceptible to disturbances such as the mechanical movement of the means for moving the gaze unit and movement noise. Even if a part or all of the configuration of the gazing unit moving means exists in the housing internal space 1, it does not depart from the present invention. Further, the brightness of the mark 6, the brightness of the color of the mark 6 and the change in saturation described in the first embodiment and the second embodiment may be performed independently or in combination. May be.

[0046] (Third embodiment)

In the third embodiment, in the interior space 1 of the visual acuity recovery training device of the second embodiment, all marks except for the reflecting means 16 made of a plane mirror, for example, are made the same color in black. It is characterized by. Since other configurations are the same as those of the second embodiment, the description thereof is omitted. By using the same color except for the mark and the reflection means 16, the trainer can easily concentrate the consciousness only on the mark, and the training effect is improved. As for the operation control of the visual acuity recovery training apparatus of this embodiment, the gaze unit display control unit 14 in FIG. 3 serves as a control means of the mark display unit 17 and controls display of the mark on the mark display unit 17. Is the same as the visual acuity recovery training apparatus shown in the first embodiment.

In the third embodiment, the configuration in which the constituent elements of the housing internal space 1 and the gaze unit moving unit storage unit 2 are clearly separated has been described. However, depending on the configuration of the gaze unit moving unit, the gaze unit Even if a part or all of the moving means is present in the internal space 1 of the case, it is sufficient that all of the moving means are the same color except for the color power mark that enters the trainee's field of view as the internal space 1 of the case. This does not depart from the invention.

[0048] (Fourth embodiment) FIG. 10 is a perspective view for explaining a schematic configuration of the main part of the visual acuity recovery training apparatus according to the fourth embodiment of the present invention. The feature of the fourth embodiment in FIG. 10 is that the four sides of the gaze unit 4 are installed in close contact with the inner wall of the housing internal space 1, that is, the size of the gaze unit 4 is within the housing internal space 1. This is the size that occupies the entire width and height of the internal space 1 with a clearance that allows reciprocal movement. The configuration other than this point may employ any configuration of the visual acuity recovery training device according to the first embodiment to the third embodiment. The trainee who is gazing at the mark 6 should also visually recognize the gaze unit 4 together with the mark 6, and the size of the gaze unit 4 that can be seen by the reciprocating movement of the gaze unit 4 becomes closer. The bigger the distance, the smaller the distance. The change in the size of the gaze unit 4 that is visually recognized is an unnecessary change in the amount of information that enters the trainee's brain, causing the trainee to feel tired and to lose concentration. In this way, by increasing the size of the gaze portion 4 to the size that occupies the entire width and height of the housing internal space 1, the proportion of the same size mark 6 on the gaze portion 4 is reduced. If the mark 6 is arranged in the center of the gaze unit 4, the distance between the outline of the gaze unit 4 and the mark 6 can be secured, and the awareness of the size of the gaze unit 4 is reduced.

[0049] Furthermore, the outline of the gaze unit 4 that is visually recognized is approximately equal to the size of the cross section perpendicular to the visual axis of the housing internal space 1, and the presence of the gaze unit 4 itself disappears, so that the trainee It is visually recognized as if the wall surface opposite to the wall surface provided with the eyepiece 3 is reciprocating. This makes it possible to train without being aware of the change in the size of the gaze unit 4 that is visually recognized, which makes it easier to concentrate on the mark 6 without reducing the concentration of the trainee, and the training effect is improved. improves.

[0050] As described above, the visual acuity recovery training device of the present invention has an advantage that the visual acuity recovery training can be efficiently performed by concentrating the trainee's consciousness on the mark to be watched. Furthermore, by stabilizing the degree of concentration, there is an advantage that the training effect is further improved by reducing the burden on the trainee such as fatigue.

[0051] Although the invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. is there.

This application is a Japanese patent application filed on July 5, 2005 (Japanese Patent Application 2005-196601). This is based on a Japanese patent application (Japanese Patent Application 2005-196602) filed in Japan, the contents of which are incorporated herein by reference.

Industrial applicability

INDUSTRIAL APPLICABILITY The present invention has an effect that a trainer can easily concentrate consciousness only on an image for visual acuity training, and is useful for a visual acuity recovery training apparatus and the like for performing an eye imaging adjustment function training.

Claims

The scope of the claims

[1] A vision recovery training device for training the imaging function of the eye,

A display unit for displaying a vision training image;

A display control unit for controlling the display of the display unit,

The vision control training device, wherein the display control unit changes at least one of color brightness or saturation of the vision training image according to an optical distance between a trainee's eye position and the position of the display unit.

[2] A vision recovery training device for training the imaging function of the eye,

A display unit for displaying a vision training image provided inside the housing;

A display control unit for controlling display of the display unit;

A brightness control unit that changes the brightness of the space inside the housing according to an optical distance between the eye position of the trainee and the position of the display unit;

A vision recovery training device comprising:

[3] The vision recovery training device according to claim 1 or 2,

The display control unit changes a display size of the training image so that the vision training image is projected on the retina of the trainer with a certain size according to the optical distance. .

[4] The vision recovery training device according to claim 1 or 2,

A gaze unit for displaying a vision training image is provided in the housing,

The visual acuity recovery training apparatus in which the colors existing in the internal space of the casing are all the same color except for the visual training image.

[5] The vision recovery training device according to claim 4,

The display control unit is configured to project the visual acuity training image on the retina of the trainer with a certain size according to an optical distance between the trainee's eye position and the position of the gaze unit. A vision recovery training device that changes the display size of training images.

[6] The vision recovery training device according to claim 4 or 5,

The gaze unit is a visual acuity recovery training apparatus that is installed in close contact with the inner wall of the housing.

[7] The visual acuity recovery training device according to any one of claims 4 to 6, The vision recovery training apparatus, wherein the same color is black.