JP2007097673A - Eyesight recovery training apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an eyesight recovery training apparatus capable of improving a training effect to a trainee whose eyesight is reduced. <P>SOLUTION: The eyesight recovery training apparatus comprises: an eyepiece part 3 for the trainee to look at an eyesight recovery training image displayed at a looking part 4 of an inner casing space 1 of the eyesight recovery training apparatus; and an eyesight correction part 7 for correcting the eyesight of the trainee to the eyesight suitable for training. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vision recovery training apparatus that trains an imaging adjustment function of an eye.

  In general, it is thought that the decrease in visual acuity is due to a decrease in the imaging function of the eye due to the adjustment tension and weakness of the eye's regulatory muscles (ciliary muscles), and by training this muscle, You can expect eyesight to recover. Conventionally, a method for improving visual acuity by activating this ciliary muscle by training and activating a perspective adjustment function has been implemented.

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

In the visual acuity recovery training apparatus as described above, various effects have been made because the training effect cannot be obtained unless the trainee gazes at the mark. For example, by housing the entire apparatus in a case, even if the gaze plate on which the mark is displayed moves back and forth in the cavity, the disturbance is reduced and the gaze is easily observed.
JP-A-6-339501

  A trainee who uses a vision recovery training apparatus usually performs vision correction using glasses or the like because his / her vision has deteriorated. When training with the naked eye without performing vision correction, it is difficult for a trainee who has a significant decrease in vision to see the mark itself. Also, when training with glasses to ensure eyesight, the glasses and the case come into contact when looking into the case containing the entire device. May occur. Also, if a trainee is correcting vision with a contact lens, he wants to avoid putting his eyes on the eyepiece and pressing his eyes.

  This invention is made | formed in view of the said situation, Comprising: It aims at providing the visual acuity recovery training apparatus which can improve the training effect of the trainee whose visual acuity has fallen more.

  The visual acuity recovery training device according to the present invention is a visual acuity recovery training device that performs training of the imaging adjustment function of the eye, and includes a visual acuity correction unit that corrects the visual acuity of the trainee to a visual acuity suitable for training.

  According to the above configuration, it is possible to concentrate and train with consciousness in a state in which appropriate visual acuity is ensured, so that it is possible to further improve the training effect for a trainee with reduced visual acuity.

  In the visual acuity recovery training apparatus of the present invention, the visual acuity correction unit corrects the visual acuity of the trainee to such an extent that a moving mark can be captured.

  According to the above configuration, even if the trainee is myopic or presbyopic, the trainer's visual acuity is corrected to an appropriate visual acuity that does not cause a feeling of fatigue during training, so the training effect can be improved. .

  The visual acuity recovery training device of the present invention further includes an eyepiece for the trainee to gaze at an image for visual acuity training in the visual acuity recovery training device main body, and the visual acuity correction unit corrects the visual acuity to the eyepiece. It is the structure which mounts the lens for use.

  According to the above configuration, the trainer can correct the visual acuity just by looking into the eyepiece, so that the trainer can concentrate and train without bothering the trainer. Therefore, the visual acuity recovery training can be performed efficiently without reducing the concentration of the trainee.

  Further, the visual acuity recovery training device of the present invention includes a gaze unit that displays an image for visual acuity training in a housing, and the visual acuity training is performed according to an optical distance between the eye position of the trainee and the position of the gaze unit. A display control unit that changes a display size of the vision training image so that the training image is projected on the retina of the trainer at a certain size.

  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.

  ADVANTAGE OF THE INVENTION According to this invention, the training effect with respect to the trainee whose visual acuity is falling can be improved.

  Hereinafter, a visual acuity recovery training apparatus according to an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a perspective view showing a part of the configuration of a main part of the visual acuity recovery training apparatus according to the first embodiment of the present invention. This apparatus is roughly divided into two components: a housing internal space 1 and a gaze unit moving means storage unit 2. In addition, this apparatus trains without being affected by disturbances such as a gaze unit moving means other than the gaze unit 4 in the housing arranged at a position where the trainee can see from the eyepiece unit 3 and scenery around the device. It is configured to be able to.

  The eyepiece 3 is provided on one of the wall surfaces of the internal space 1 of the housing, and the trainee makes an eye contact with the eyepiece 3 and is displayed on the display unit 5 of the gaze unit 4 in the vision recovery training apparatus main body. It is possible to gaze at the mark 6 which is an image for visual acuity training. At least one eyepiece 3 is provided, preferably two. The vision correction unit 7 is for correcting the trainee's vision to vision suitable for training, and is configured by mounting a vision correction lens (not shown) in the groove formed in the eyepiece 3.

  In the present embodiment, the gaze unit 4 is formed of a light emitting element such as a CRT (Cathode Ray Tube), a liquid crystal display, or an organic EL (Electro-Luminescence) so that the trainee can change the mark 6 for gaze as appropriate. The display unit 5 is an electronic display unit such as a display, and is reciprocated by the gaze unit moving unit housed in the gaze unit moving unit storage unit 2 to change the distance from the eyepiece unit 3. .

  FIG. 2 is a cross-sectional view showing a schematic configuration of the visual acuity recovery training device of the present embodiment. The gaze unit 4 is fixed to the pedestal 9 by a support column 8 or other appropriate support means. The pedestal 9 is placed on a conveying means composed of pulleys 10 and 11, a belt 12 and the like. In addition, the gaze unit moving means includes, for example, a belt conveyor that includes the pulleys 10 and 11 and the belt 12, the belt 12 and the gaze unit 4 are connected, and the pulley 11 is driven by changing the rotation direction using, for example, the motor 13. By doing so, the gaze unit 4 is reciprocated. It is also possible to reciprocate the gaze unit 4 by connecting the nut of the ball screw and the gaze unit 4 and rotating the ball screw with a motor 13 or the like while changing the rotation direction.

  At the boundary between the housing internal space 1 and the gaze unit moving means storage unit 2, a minimum opening 2k necessary to connect the gaze unit 4 to the gaze unit moving unit and reciprocate is provided. The operation of the motor 13 and the display of the gaze unit 4 are controlled by a control device 20 described later. Although not shown, the control device 20 is connected to the display unit 5, the motor 13, and the like through signal lines for transmitting and receiving control signals.

  FIG. 3 is a block diagram showing a functional configuration of the control device 20 that controls the operation of the visual acuity recovery training device of the present embodiment. The control device 20 includes a main control unit 21, a gaze unit movement control unit 22 that controls driving of the motor 13, a gaze unit display control unit 23 that controls display on the display unit 5, and an operation unit 24. .

  The main control unit 21 controls the entire operation of the visual acuity recovery training apparatus, and controls the gaze unit movement control unit 22 and the gaze unit display control unit 23 based on an instruction from the operation unit 24. The gaze movement control unit 22 controls the movement of the gaze unit 4 by outputting a drive signal to the motor 13. At that time, information corresponding to the setting of the operation unit 24 is acquired from the main control unit 21 and the movement range and movement speed of the gaze unit 4 are controlled. The movement of the gaze unit 4 may be continuous or intermittent. The gaze unit display control unit 23 drives 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, and displays a mark 6 for the trainee to gaze at. .

  The gaze unit display control unit 23 projects the mark 6 of the gaze unit 4 on the retina of the trainer with a certain size according to the optical distance between the position of the eye of the trainee and the position of the gaze unit 4. Thus, the display size of the mark is changed. Information on the optical distance between the eyepiece unit 3 and the gaze unit 4 is acquired from the main control unit 20. Data for displaying the mark 6 having a size proportional to the optical distance between the eyepiece 3 and the gaze unit 4 may be calculated each time, or storage means (not shown) for storing operation information and the like. The information stored in advance may be read and displayed. At this time, the mark 6 to be displayed may be selected and used by the operation unit 24 whenever necessary, and the mark previously stored in the storage means may be used, or the trainer's desired mark 6 may be used. You may specify and use from. In this case, the data for displaying the mark 6 having a size proportional to the optical distance between the eyepiece unit 3 and the gaze unit 4 needs to be calculated each time. The mark 6 may be anything as long as it is easy for the trainer to focus on the characters, figures, symbols, images, etc. and focus the eyes easily.

  When performing the visual acuity recovery training using the visual acuity recovery training apparatus configured as described above, the trainee looks into the interior space 1 of the housing from the eyepiece 3 and gazes at the mark 6 on the gaze unit 4. To do. Since the position of the mark 6 changes depending on the movement of the gaze unit 4, the trainee sees the mark 6 having a different position. Accordingly, it is necessary to focus the eyes in accordance with the change in the position of the mark 6, and the imaging adjustment function of the eyes such as the ciliary muscle is activated. This can be expected to improve the imaging adjustment function of the eyes. At this time, the optical distance between the trainee's eyes and the mark 6 is preferably changed between the near point distance and the far point distance of the normal eyesight person.

  FIG. 4 is a diagram illustrating an example of the mark 6 displayed when the gaze unit 4 of the visual acuity recovery training apparatus according to the present embodiment is moved. (A) is a position closest to the trainee, (b) is an intermediate position between the closest position and the farthest position, and (c) is a display example of each mark 6 displayed at each position of the farthest position. ing. In this manner, by displaying the marks 6 having similar shapes with a size proportional to the distance from the trainee, even if the distance changes, the size and shape of the mark 6 that can be seen by the trainee are substantially reduced. Therefore, the amount of information input to the trainee's brain does not change and the eyes can be focused easily.

  Here, a trainee who uses the visual acuity recovery training apparatus usually has low visual acuity, but when the visual acuity reduction is significant, it is difficult to visually recognize the mark 6 with the naked eye, and the training effect is impaired. There is. That is, in order to improve the training effect, it is necessary to secure appropriate visual acuity in carrying out the visual acuity recovery training. Therefore, in the visual acuity recovery training apparatus according to the present embodiment, the eyesight correction unit 7 is provided with a groove in which the eye correction lens can be attached to the eyepiece unit 3, and the visual acuity suitable for the trainer before starting the training. Appropriate visual acuity can be secured by wearing a correction lens. The visual acuity suitable for training is such that the mark is clearly visible from the near point to the far point, and it is sufficient for the visual acuity correction unit 7 to correct the visual acuity of the trainee to such an extent that the moving mark can be captured. Intensity correction should be avoided because it reduces the training effect and causes fatigue.

  Quantitative visual acuity can be grasped by using the mark 6 used for selecting a vision correction lens in advance, such as a mark generally used for visual acuity measurement such as a Landolt ring or a Snellen index. While the size of the mark 6 is changed so that the visual acuity can be grasped at a distance of the trainee, the visual acuity of the trainer is not less than 1.0 with a visual acuity of 1.0 or less and a burden on the trainer at a distant and near distance. A vision correction lens may be selected.

  Thus, in this visual acuity recovery training apparatus, the mark 6 can be seen with visual acuity suitable for training only by looking into the mark 6 from the eyepiece 3 during the visual acuity recovery training. Therefore, it is possible to concentrate and train with consciousness in a state where appropriate visual acuity is ensured, so that it is possible to improve the training effect for trainees with reduced visual acuity and to efficiently perform visual acuity recovery training. .

(Second Embodiment)
FIG. 5 is a cross-sectional view illustrating a schematic configuration of a visual acuity recovery training device according to the second embodiment of the present invention. The difference from the first embodiment of FIG. 2 is that a distance holding unit 14 for securing a distance between the face of the trainee and the eyepiece 3 is provided above the eyepiece 3. In the present embodiment, a visual acuity recovery training apparatus including the visual acuity correction unit 7 and the distance holding unit 14 is shown. However, when the distance holding unit 14 is provided, the visual acuity correction unit 7 is not essential. When visual acuity recovery training is performed using the visual acuity recovery training apparatus according to the present embodiment, the trainee looks into the interior space 1 of the housing from the eyepiece 3 and on the gaze unit 4 as in the first embodiment. Look at the mark 6. At this time, the trainee looks into the eyepiece unit 3 with the forehead in contact with the distance holding unit 14. The protrusion amount of the distance holding unit 14 from the apparatus housing can be adjusted, and the distance is adjusted according to the trainee. A trainee who has put a forehead on the distance holding unit 14 and kept an appropriate distance from the eyepiece 3 does not squeeze the eyes at the eyepiece 3, and is especially a trainee using a contact lens Can train in a favorable state. Moreover, since the forehead is hitting the distance holding unit 14, the movement of the head is suppressed. When the head stops moving, the line of sight during training becomes stable and it becomes easier to gaze at the mark 6 on the gaze unit 4, so that the training effect can be further improved.

  FIG. 6 is a diagram showing how a trainee wearing the glasses in the present embodiment performs training. When trainees wearing spectacles perform vision recovery training using the vision recovery training device of the present embodiment, if the correct vision is suitable for training, training is performed using the glasses normally used by the trainee To do. At that time, the eyeglasses and the eyepiece 3 may collide with each other. If it actually hits, the trainer feels uncomfortable and the concentration on training is interrupted. In addition, the state in which the trainee trains while taking care not to hit the eyeglasses 3 against the eyepiece 3 is bothersome for the trainer and causes a loss of concentration. In the visual acuity recovery training apparatus according to the present embodiment, the protrusion amount of the distance holding unit 14 can be adjusted, and the distance holding unit 14 is configured so as to hold a distance at which the eyeglasses and the eyepiece 3 do not collide when wearing the glasses. The amount of protrusion can be adjusted in advance. When eyesight recovery training is carried out in this state, the movement of the trainee's head can be suppressed, and the eyeglasses do not hit the eyepiece 3. Therefore, the trainee must concentrate on eyesight recovery training with the eyeglasses on. Can improve the training effect.

  Thus, in this Embodiment, since the distance holding | maintenance part 14 for ensuring the distance of a trainee and the eyepiece part 3 is provided, the effect of training is effective with respect to the trainee who has low visual acuity. In order to improve further, it is possible to concentrate and train consciousness in a state where appropriate visual acuity is ensured, and to efficiently perform visual acuity recovery training.

  In the configuration shown in FIGS. 5 and 6, the distance holding portion 14 that comes into contact with the trainee's forehead is provided. However, as shown in FIG. 7, the distance holding portion that comes into contact with the trainee's chin portion further. 15 may be provided. Thereby, the distance of a trainee's face and the eyepiece part 3 can be hold | maintained, and the effect of suppressing the motion of a trainee's head can further be exhibited.

  As described above, the vision recovery training apparatus according to the embodiment of the present invention has been described. As shown in FIG. 8, the brightness of the mark 6 of the gaze unit 4 increases as the distance from the eyepiece unit 3 increases. It is preferable to make it. Therefore, as shown in FIG. 9, display means 16 for displaying a mark on the display unit 5 of the gaze unit 4 may be provided separately from the gaze unit 4. According to this configuration, since the gaze unit can be made movable and the display means can be made fixed, the brightness of the mark 6 can be increased compared to the case where the movable display means whose size and weight are limited is used. It is advantageous to change. In addition, 16h of the figure has shown the image light from the display means 16 to the display part 5, and 16i has shown the reflected light to the eyepiece part 3, respectively.

  INDUSTRIAL APPLICABILITY The present invention has an effect capable of further improving the training effect for a trainee whose visual acuity is reduced, and is useful for a vision recovery training apparatus that performs training of an imaging adjustment function of an eye.

The perspective view which fractures | ruptures and shows the principal part structure of the visual acuity recovery training apparatus of the 1st Embodiment of this invention. Sectional drawing which shows schematic structure of the visual acuity recovery training apparatus of the 1st Embodiment of this invention The block diagram which shows schematic function structure of the control apparatus which controls operation | movement of the visual acuity recovery training apparatus of the 1st Embodiment of this invention. The figure which shows an example of the mark displayed when the gaze part of the visual acuity recovery training apparatus of the 1st Embodiment of this invention is moved. Sectional drawing which shows schematic structure of the visual acuity recovery training apparatus of the 2nd Embodiment of this invention. Explanatory drawing which shows a mode that the trainee who equipped the spectacles in the 2nd Embodiment of this invention wears training Explanatory drawing which shows a mode that the trainee who equipped the spectacles in the 2nd Embodiment of this invention wears training The figure which shows the relationship between the distance from the eyepiece part of a gaze part, and the brightness of a mark Sectional drawing which shows the structure which provided the display means separately from the gaze part

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing | casing interior space 2 Gaze part moving means storage part 3 Eyepiece part 4 Gaze part 5 Display part 6 Mark 7 Vision correction part 8 Support | pillar 9 Base 10 Pulley 11 Pulley 12 Belt 13 Motor 14 Distance holding part 15 Distance holding part 16 Display Means 20 Control device 21 Main control unit 22 Gaze movement control unit 23 Gaze display control unit 24 Operation unit

Claims (4)

A vision recovery training device that trains the imaging adjustment function of the eye,
A vision recovery training device comprising a vision correction unit for correcting a trainee's vision to a vision suitable for training. The vision recovery training device according to claim 1,
The visual acuity correction training device corrects the visual acuity of the trainee to such an extent that a moving mark can be captured. The vision recovery training device according to claim 1 or 2,
The trainee comprises an eyepiece for gazing at the image for vision training in the vision recovery training apparatus body,
The vision correction training device is a vision recovery training device configured to mount a vision correction lens on the eyepiece. A vision recovery training device according to any one of claims 1 to 3,
A gaze unit for displaying a vision training image is provided in the housing,
According to the optical distance between the position of the trainee's eyes and the position of the gaze unit, the vision training image is projected on the retina of the trainer with a certain size. A vision recovery training device including a display control unit that changes a display size.

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