Therapeutic device for correcting myopia by staring with naked eyes

Abstract

A therapeutic device for correcting myopia through naked eye gaze, which has a simple structure and can gradually improve vision through long-term gaze training with naked eyes within or outside the clear vision distance of the eyes. It is placed on a table outside the near point of the gazer's eyes in a vertical or horizontal position or hung on a wall outside the near point of the gazer's eyes. A light-through window is provided on the front of its shell, and a rear-stage reflector is provided in the shell opposite to the light-through window, which can clearly image the text pattern on the target board on the object side in a manner that the opening angle is adjustable and located at the far point of the gazer's eyes, and is reflected out of the shell by the light-through window. The therapeutic device can be used by patients with myopia. When the ciliary muscle is relaxed, the opening angle of the image entering the human eye is adjusted in stages to train the ciliary muscle. After long-term training, the ciliary muscle of myopic eyes can restore its original adjustment ability.

Description

Technical Field

[0001] The invention relates to a therapeutic device capable of correcting myopia, and in particular to a therapeutic device capable of achieving a better correction effect by standing at a certain distance and gazing at it with naked eyes after long-term training. Background Art

[0002] As we all know, letting people with myopia look into the distance with naked eyes frequently is very beneficial to restoring their vision. For teenagers, long-term training like this is very likely to make them throw away their glasses and restore their vision to normal.

[0003] Causes of myopia: In the natural environment, people see pictures that are near and far. When people's eyes move, they need to constantly participate in focusing adjustment to see clearly. In this way, the ciliary muscles of the eyes will be exercised with their frequent movements. At the same time, under the adjustment of the ciliary muscles, the external scenery is clearly imaged on the retina through the pupil and the lens. Nowadays, with the emergence of modern screen products that spread media information such as mobile phones and tablets, most people spend a lot of time staring at the screen every day, and students spend more than 8 hours. When reading these flat books, the ciliary muscles rarely adjust the long-range focus, and the distance is very close, which makes the ciliary muscles less and less able to adjust the long-range focus, and the eye muscles become rigid, forming myopia.

[0004] Existing home myopia treatment devices usually need to be used close to the user's eyes. The virtual distant view area is small, the clarity is extremely poor, the distance cannot be adjusted, and the distant and near views cannot be switched. The efficacy is poor. Due to the limited use conditions, the actual usage rate is extremely low. It is easy to carry bacteria to the eyes when it is close to the eyes, bringing potential infection risks. Professional medical myopia treatment devices are large in size, expensive and complicated to operate, and are not suitable for home use. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a therapeutic device for correcting myopia with naked eye gaze, which has a simple structure and can gradually improve vision through long-term gaze training of the naked eye within or outside the clear vision distance of the eye.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The therapeutic device for correcting myopia by staring with the naked eye of the present invention is characterized in that: its appearance is a cylinder or a multi-curved body, and it is placed on a table outside the near point of the gazer's eyes in a vertical or horizontal posture or hung on a wall outside the near point of the gazer's eyes, and a light-through window is provided on the front side of its shell, and a rear-stage reflector is provided at a position opposite to the light-through window in the shell, which can clearly image the text pattern on the object target board in a manner that the opening angle is adjustable and the image is located at the far point of the gazer's eyes, and the image is reflected outside the shell by the light-through window. The object target board is arranged in the shell and is located on the other side of the rear-stage reflector.

[0008] The rear-stage reflector is a spherical reflector with a curvature radius of 400-6000mm, an angle between the center normal of the rear-stage reflector and the plane where the light-transmitting window is located of 5-45 degrees, and the object side target plate is located between the object side focal plane of the rear-stage reflector and the rear-stage reflector.

[0009] An image distance adjusting component is provided on the side of the housing for adjusting the opening angle of the image clearly imaged in the rear-stage reflector entering the pupil of the gazer by changing the spatial position or tilt angle of the rear-stage reflector.

[0010] On the optical path between the object target plate and the rear-stage reflector in the shell, there is a refraction and reflection system composed of multiple optical mirrors including a plane or spherical reflector, a spherical convex lens and a spherical concave lens designed and combined according to the optical imaging principle.

[0011] The rear-stage reflector is a plane reflector or a spherical reflector, and the refracting and reflecting system emits the text pattern object points on the object side target plate as parallel light image rays through the rear-stage reflector.

[0012] The refraction-reflection system is composed of a first convex lens, a first plane reflector and a telescope lens assembly arranged in reverse, the rear-stage reflector is a plane reflector, the object target plate is located on the object focal plane of the first convex lens, the first plane reflector is located obliquely above the first convex lens, the telescope assembly is a Kepler telescope assembly or a Galilean telescope assembly, and the telescope lens assembly is located in the optical path between the first plane reflector and the rear-stage reflector.

[0013] An image distance adjustment component is provided on the side of the housing to adjust the opening angle of the image clearly imaged in the rear-stage reflector entering the pupil of the gazer by changing the spatial position of the first plane reflector and / or the telescope assembly.

[0014] An angle adjustment component capable of adjusting the reflection angle of the rear-stage reflector is arranged beside the image distance adjustment component. The angle adjustment component is a manual knob or an automatic remote control component.

[0015] The image distance adjustment component is a manual knob or an automatic remote control component, and its inner end is connected to a transmission mechanism, and the transmission mechanism includes a rack transmission, a screw transmission, a rope transmission or a chain transmission.

[0016] A numerical display window for displaying the visual intensity corresponding to the image in the rear-stage reflector or the simulated distance of the image is also provided on the front side of the housing.

[0017] The present invention integrates a target object and an optical mirror assembly capable of imaging the target object on a rear-stage reflector in a housing according to the optical imaging principle. The image formed on the rear-stage reflector is emitted from a light-transmitting window. The gazer at the front of the housing can clearly see the image in a naked-eye viewing manner at a distance from the light-transmitting window equal to the gazer's clear vision distance or further. The image can also change the size of the opening angle of the image entering the gazer's eyes by adjusting the image distance adjustment component arranged on the housing. Thus, the therapeutic apparatus can be used by patients with myopia. When the ciliary muscle is relaxed, the size of the opening angle of the image entering the human eye can be adjusted in stages to train the ciliary muscle. After long-term training, the ciliary muscle of the myopic eye can restore its original adjustment ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance of the therapeutic device according to Example 1 of the present invention.

[0019] Figure 2 for Figure 1 Schematic diagram after opening the back cover.

[0020] Figure 3 for Figure 1 Schematic diagram of the association structure between the object side target plate and the subsequent reflector.

[0021] Figure 4 This is a schematic diagram of the appearance of the therapeutic device according to Example 2 of the present invention.

[0022] Figure 5 for Figure 4 Rear view of.

[0023] Figure 6 for Figure 5 Schematic diagram after opening the back cover.

[0024] Figure 7 for Figure 6 Schematic diagram of the association structure between the object side target plate and the rear-stage reflector (gear rack transmission mechanism).

[0025] Figure 8 for Figure 7 Schematic diagram of the left side.

[0026] Fig. 9 This is a schematic diagram of the front cover when looking inward from the back.

[0027] Fig.10 for Figure 7 Schematic diagram of the right side.

[0028] The reference numerals are as follows:

[0029] Therapeutic device 1, shell 2, front cover 21, numerical display window 22, visual intensity 221, function key area 23, light-transmitting window 24, reference panel 25, rear cover 26, object side target plate 3, rear-stage reflector 4, image distance adjustment component 5, angle adjustment component 6, transmission mechanism 7, first plane reflector 8. DETAILED DESCRIPTION

[0030] The therapeutic device for correcting myopia by staring with the naked eye of the present invention adopts an optical imaging system, and the most basic beneficial effect (realized by the following embodiment 1) that can be produced is: the text pattern on the object side target board 3 set in the therapeutic device 1 is imaged on the rear-stage reflector 4 (set in the therapeutic device 1) in a manner with an adjustable angle of entering the human eye, and the image formed on the rear-stage reflector 4 is projected into the eyes of the gazer through the light-transmitting window 24 set on the shell 2 of the therapeutic device 1. The therapeutic apparatus 1 can enable myopic patients to take a short period of time every day to train their eyes to restore vision by looking with the naked eye. During the training, the patient stands at a distance from the light-transmitting window 24 and stares at the image in the rear-stage reflector 4. The distance is preferably at the patient's clear vision distance or far point position. At this time, when the patient sees objects, the ciliary muscles of his eyes are in a completely relaxed state. In the early stage of training, he can stare at an image with a larger opening angle. In the middle to late stages, the image projected by the rear-stage reflector 4 can be gradually adjusted to an image with a smaller opening angle entering the patient's eyes, so that the patient seems to be looking at a distant object. Such repeated training can exercise the ciliary muscles of the patient's eyes due to frequent activities, so that the ciliary muscles gradually restore the ability to adjust the eye lens.

[0031] The beneficial effect that can be produced by further improvement of the present invention (realized by the following embodiment 2) is: the image of the parallel light projected by the rear-stage reflector 4, and the opening angle of the image entering the patient's eyes is small, that is, compared with the text pattern on the object side target plate 3, the image is a reduced image. In this way, the patient stands at the clear vision distance or far point position and stares at the image just like staring at a distant object, thereby allowing the patient's ciliary muscle to be in a fully relaxed state. Similarly, by adjusting the opening angle of the image entering the patient's eyes and repeated training, the adjustment ability of the ciliary muscle can be restored better and faster.

[0032] Glossary:

[0033] Far point: When the muscles in the eye are relaxed and the radius of curvature of the two curved surfaces of the lens is the largest, the distance from the object point that can form a clear image on the retina to the eye is called the far point.

[0034] Near point: When an object moves closer from far away, in order to see it clearly, the muscles must press the lens so that the radius of curvature of its two curved surfaces (mainly the front surface of the lens) becomes smaller. When the object moves to a certain distance, the radius of curvature of the two curved surfaces of the lens has reached the minimum. If the object moves closer from this position, the radius of curvature of the lens will no longer decrease, and the object will not be seen clearly. At this time, the distance from the object point to the eye is called the near point.

[0035] Clear vision distance: Under appropriate illumination (50-100 lux), it is effortless and comfortable for the average eye to see objects 25 cm in front of the eyes. This distance is called the clear vision distance of the eyes.

[0036] 1. Basic structure of the present invention

[0037] The invention comprises a shell 2, a light-transmitting window 24 arranged on the front side of the shell 2, an object side target plate 3 arranged in the shell 2, a rear-stage reflector 4 arranged in the shell 2 and opposite to the light-transmitting window 24, an image distance adjusting component 5 capable of adjusting the spatial position of the rear-stage reflector 4, and an angle adjusting component 6 capable of adjusting the light emitting angle of the rear-stage reflector 4.

[0038] 1. Shell 2

[0039] like Figure 1 , 4 As shown in Figures 5 and 9, the outer shape of the shell 2 is a rectangular parallelepiped, a cube, or a prism with a pentagonal or hexagonal cross section. It can also be designed as a multi-curved body with artistic appreciation value and streamlined beauty. For the sake of convenience, the present invention is described below using the shell 2 with a vertical rectangular outer shape as an example.

[0040] The length×width×height of the housing 2 may be (20 cm-40 cm)×(10 cm-15 cm)×(30 cm-50 cm).

[0041] The housing 2 is divided into a front cover 21 and a rear cover 26 , and the front cover 21 and the rear cover 26 can be assembled together through a quick buckle structure.

[0042] The bottom of the front cover 21 or the rear cover 26 is provided with a counterweight component, which is conducive to being stably placed on a desktop, a table top or a bookshelf. A hanging ring can also be established on the rear cover 26, which is conducive to being hung on the wall.

[0043] The light-through window 24 is arranged on the front cover 21 , and the size and shape of the light-through window 24 depend on the type and size of the image on the rear-stage reflector 4 . The light-through window 24 is used to project the image on the rear-stage reflector 4 out of the housing 2 .

[0044] Transparent lenses can be provided on the light-through window 24, and also can be provided as a movable door that can be opened. In order to prevent the long-time opening and closing from becoming loose, a fastening spring or a plastic pressing plate can be added to the rotating shaft of the movable door and an opening and closing position limit point can be provided on the shell.

[0045] The front cover 21 is also provided with a numerical display window 22 corresponding to the visual acuity value or the equivalent distance of the image on the rear-stage reflector 4, that is, when the myopic patient stands in a set position in front of the housing 2 and can clearly see the image on the rear-stage reflector 4, the corresponding visual acuity value 221 or the distance of the clearly visible image from himself (see Fig.10 ).

[0046] 2. Object target board 3

[0047] It is arranged inside the housing 2 and located on the inner side of the housing 2 (the side close to the rear cover 26 is the inner side, and the side close to the front cover 21 is the outer side, the same below). It can be a printed panel with text patterns printed on it, or a transparent plate with text patterns on the surface. If it is the former, a light source can be arranged on the rear cover 26, and the light emitted by the light source can be projected onto the printed panel; if it is the latter, it is installed on a light box, and a light source is installed in the light box.

[0048] The object target board 3 can also be a card that can be pulled out and replaced, the user's own mobile phone or other clear objects, and the text patterns thereon can be set to several groups with different sizes but the same content.

[0049] Of course, the object target board 3 may also be a liquid crystal panel that can transmit audio and video information in real time.

[0050] 3. Rear stage reflector 4

[0051] It is arranged on the outside of the housing 2 and is a plane reflector or a spherical reflector. Its vertical position and whether it is a plane reflector or a spherical reflector are described in detail in the different embodiments described below.

[0052] 4. Image distance adjustment component 5

[0053] A manual knob-type adjustment component can be used, or an automatic remote control adjustment component with a motor and a main control circuit controlled by a remote controller can be used.

[0054] The image distance adjusting component 5 is usually arranged on the side of the housing 2 .

[0055] The image distance adjusting component 5 is used to adjust the size of the image in the rear-stage reflector 4, that is, to adjust the size of the opening angle of the image entering the pupil of the gazer.

[0056] The inner end of the image distance adjusting component 5 is connected to the transmission mechanism 7, and the transmission mechanism 7 includes a gear rack transmission, a screw transmission, a rope transmission or a chain transmission.

[0057] When the image distance adjusting component 5 is adjusted, the slide bar connected thereto and engraved with the visual acuity reading 221 can move up and down synchronously with the transmission mechanism, so that the corresponding visual acuity reading 221 is displayed on the numerical display window 22 .

[0058] 5. Angle adjustment component 6

[0059] An angle adjustment component 6 capable of adjusting the reflection angle of the rear-stage reflector 4 is provided beside the image distance adjustment component 5 . The angle adjustment component 6 is a manual knob or an automatic remote control component.

[0060] 6. Reference panel with text pattern 25

[0061] A reference panel 25 is provided on both sides of the front face of the front cover 21. The text pattern on the reference panel 25 is a fixed reference object of constant size. It is used to allow the trained myopic patient to switch his eyes to staring at the image on the rear reflector 4 for a period of time, and then switch his eyes to staring at the reference panel 25. The purpose is to allow the eyes to switch back and forth between the reference panel 25 and the image, so that the ciliary muscle of the eye does not always stay in one state, and to promote the activity of the ciliary muscle, making it more relaxed and more elastic.

[0062] 7. A function key area 23 is also provided on the front cover 21. The function key area 23 includes a J key, a Y key, an M key and a power key.

[0063] J key: Refer to the brightness adjustment of panel 25, which is divided into eight levels. Adjust to a clear and comfortable level.

[0064] Y key: adjust the brightness of the object target board 3, which is divided into eight levels. Adjust it to a clear and comfortable level.

[0065] M key: It is the mode selection key, which includes long light mode, word group guide mode and single word guide mode.

[0066] Power button: used to turn on the light source part of the object side target plate 3 and the reference panel 25.

[0067] 2. Embodiment

[0068] Example 1

[0069] like Figure 1 -3, in this embodiment, the object side target plate 3 is arranged at the bottom of the shell 2, the rear-stage reflector 4 is a spherical reflector, which is arranged obliquely above the object side target plate 3, the object side target plate 3 is connected to the transmission mechanism 7, and the image distance adjustment component 5 is adjusted to make the object side target plate 3 move up and down in the shell 2.

[0070] The curvature radius of the rear-stage reflector 4 is 180-6000 mm. Correspondingly, the object focus position of the rear-stage reflector 4 is calculated according to the paraxial spherical refraction formula and is approximately 90-3000 mm from the center point of the mirror surface of the rear-stage reflector 4 on the optical axis.

[0071] The paraxial spherical refraction formula is: (n′ / s′)-(n / s)=(n′-n) / r;

[0072] n and n′ are the refractive indices of the transparent media on both sides of the interface of the single spherical mirror, s and s′ are the distances from the object and image to the center of the interface, and r is the radius of curvature of the single spherical mirror.

[0073] When n′=-n, the single spherical mirror can be regarded as a spherical reflector. At this time, the reflection formula of the spherical reflector in the near-axis area is: (1 / s′)+(1 / s)=2 / r.

[0074] The angle between the center normal of the rear stage reflector 4 and the plane where the light passing window 24 is located is 5-45 degrees. In this embodiment, the window area of ​​the light passing window 24 is relatively large.

[0075] The object side target plate 3 is located between the object side focal plane of the rear stage reflector 4 and the rear stage reflector 4 , that is, the image of the text pattern on the object side target plate 3 formed on the rear stage reflector 4 is an enlarged virtual image.

[0076] By adjusting the image distance adjusting component 5, the distance between the object side target plate 3 and the rear stage reflector 4 is shortened or extended, thereby changing the opening angle of the virtual image entering the pupil of the human eye.

[0077] By adjusting the angle adjustment component 6, the image on the rear-stage reflective mirror 4 can be adapted to the virtual image seen by users at different heights.

[0078] Example 2

[0079] like Figure 4 -8, in this embodiment, the object target plate 3 is arranged on the inner side of the bottom of the shell 2, and the rear-stage reflector 4 is a spherical or plane reflector, which is arranged on the outer side of the bottom of the shell 2 together with the object target plate 3, that is, the object target plate 3 and the rear-stage reflector 4 are arranged in parallel, and the light-transmitting window 24 is located at the bottom of the front side of the front cover 21.

[0080] In the shell 2, located above the object target plate 3 and the subsequent reflector 4 and on the optical path between the object target plate 3 and the subsequent reflector 4, there is a refraction and reflection system (the optical system composed of lenses and reflectors is called a refraction and reflection system) which is designed and combined according to the optical imaging principle and is composed of multiple optical mirrors such as plane or spherical reflectors, spherical convex lenses and spherical concave lenses.

[0081] In this embodiment, the object points of the text pattern on the object target plate 3 are projected out of the housing 2 by the rear-stage reflector 4 in the form of parallel light through the adjustment of the folding and reflecting system. That is, the image on the rear-stage reflector 4 is a reduced image compared with the text pattern on the object target plate 3. Since the image is emitted in the form of parallel light, people feel that the image they see is an object in the distance. For the gazer, firstly, the opening angle of the image entering the gazer's pupil is small, so that the ciliary muscle of the eye is in a very relaxed state; secondly, according to the refraction characteristics of the human eye to light, the image formed by parallel light entering the human eye is easily refracted by the lens and converged on the retina, so that the gazer can see a clear image.

[0082] According to the principles of optical imaging, there can be several combinations of folding and reflecting systems that can achieve the above-mentioned purpose.

[0083] The present invention is described with the following refraction system:

[0084] The catadioptric system can be composed of a first convex lens (not shown in the figure), a first plane reflector 8 and a telescope lens assembly arranged in reverse. The rear stage reflector 4 is a plane reflector, the object side target plate 3 is located on the object side focal plane of the first convex lens, the first plane reflector 8 is located obliquely above the first convex lens, the telescope assembly (not shown in the figure) is a Keplerian telescope assembly or a Galilean telescope assembly, and the telescope lens assembly is located in the optical path between the first plane reflector 8 and the rear stage reflector 4.

[0085] In the refraction and reflection system, the first convex lens projects the object point on the object target plate 3 to the first plane reflector 8 in the form of parallel light. Since the plane reflector does not change the size of the image but only changes the direction of the light, it projects the image of the object point to the telescope assembly in the form of parallel light, and the telescope assembly then projects it to the rear-stage reflector 4 in the form of parallel light, thereby realizing that the image of the object point of the text pattern on the object target plate 3 is emitted from the shell 2 through the light-transmitting window 24 in the form of parallel light.

[0086] The telescope assembly is a reversely set Keplerian telescope or Galilean telescope, and the reverse setting means that the eyepiece in the Keplerian telescope or Galilean telescope is set as the object-side lens in the telescope assembly, and the objective lens in the Keplerian telescope or Galilean telescope is set as the image-side lens in the telescope assembly. In this way, the telescope assembly converts a larger image into a reduced image through its output, that is, converts an object with a larger opening angle entering the human eye into an image with a smaller opening angle entering the human eye.

[0087] Note: Conventional Kepler telescopes and Galileo telescopes present distant objects that enter the human eye at a smaller angle as images that enter the human eye at a larger angle.

[0088] In the catadioptric system, the first plane reflector 8 and / or the telescope assembly can be connected to the image distance adjustment component 5, and the size of the image emitted by the rear-stage reflector 4 can be adjusted by the following single adjustment method or combined adjustment method:

[0089] The first adjustment method is to change the angle between the first plane reflector 8 and the optical axis of the first convex lens.

[0090] The second adjustment method is by changing the distance between the first plane reflecting mirror 8 and the telescope assembly.

[0091] The third adjustment method is by changing the distance between the telescope assembly and the rear-stage reflector 4 .

[0092] The angle adjustment component 6 can be connected to the first plane reflector 8 or the subsequent reflector 4, and can adjust the angle between the first plane reflector 8, the subsequent reflector 4 and the main optical axis.

[0093] III. Advantages and use of the present invention

[0094] The present invention provides a myopia instrument for myopic patients to perform near-far alternating treatment with naked eyes. The instrument has a large clear farsighted area, a wide adjustable farsighted distance, is easy to use, and has simple and intuitive operation. Ordinary users can easily adjust the farsightedness that best suits their myopia degree and perform near-far alternating training treatment. The instrument is affordable, highly reliable, and has almost no use risk. Each treatment only takes about 10-20 seconds, and there is no need to prepare for use such as picking up and aligning each time. The user only needs a little time, and can even perform fast near-far alternating focusing training treatment while walking by. The instrument solves the problem that the traditional home therapeutic instrument 1 must be used close to the eyes.

[0095] The present invention may also be improved as follows:

[0096] 1) Machine feet are added at the four corners of the bottom of the shell 2 to facilitate direct placement on the ground for use.

[0097] 2) A voice prompt function is set on the therapeutic device 1 to assist the user in prompting.

[0098] 3) A space is provided on the housing 2 for placing a mobile phone.

[0099] 4) A light sensor may be provided to automatically adjust the brightness of the reference panel 25 and the object target panel 3 according to the external light intensity.

[0100] 5) A card-inserted Bluetooth speaker can be set up, using the outer shell as the sound cavity.

[0101] 6) A hanging bracket can be added to facilitate users to hang it on the wall for use.

[0102] 7) An LED lighting lamp can be set on the housing 2 and used as a desk lamp.

[0103] Instructions for use:

[0104] When using this therapeutic device 1, you do not need to wear glasses. Please relax your eyes and do not be nervous.

[0105] Rehabilitation training and treatment must be gradual and should only feel easy and appropriate. Avoid long-term high-intensity training and treatment.

[0106] If you feel dizzy, please immediately lower the training distance. Some people may experience this condition after training beyond the visual distance for a long time. You can recover by closing your eyes and resting for a while.

[0107] When you start to have trouble seeing clearly, please do not frown too hard, relax your eyes, scan back and forth a few times and it will gradually become clear. Exerting too hard will cause myopia to worsen instantly.

[0108] You can train once for 10 seconds to 3 minutes each time. It is recommended to train once every half an hour when looking at something close.

[0109] Instructions

[0110] Distance adjustment:

[0111] 1) For the first use, please adjust to the lowest myopia value (the corresponding virtual image is larger). Start training from large letters to small letters. After you can see the small letters clearly, gradually increase the value for training. The glasses should be about 20-100 cm away from the instrument (depending on your vision).

[0112] 2) Adjust the image directly to the farthest distance that the eyes can accept for alternating near and far training (experience required), until the edge of the font can be seen clearly (switching back and forth several times is required), and the eyes feel a slight swelling.

[0113] The M key, J key, Y key and power key are annotated as follows:

[0114] M key, mode selection key:

[0115] 1) Long-on mode. After you learn how to use your eyes to scan back and forth, it is recommended that you keep using this mode (move your eyes, not your neck).

[0116] 2) In the word group guidance mode, the signboard will light up alternately at a slow speed. Please read ABCDE on the reference panel 25, and then look at ABCDE presented by the lit virtual image three times, then switch to another group and alternate twice (let the eyes move in an X-shaped manner while improving the focusing ability)

[0117] 3) In single-word guidance mode, the board will light up alternately and quickly, and your eyes will quickly scan the same single letter, back and forth for about 5 times, and then switch to another group and alternate 5 times.

[0118] 4) The viewing mode board will light up alternately and rapidly, and the eyes will quickly scan the same single letter back and forth about 4 times, and the eyes will scan the edge of the virtual font for 30 seconds.

[0119] J key: Brightness adjustment of near-screen display: 8 levels, adjust to a clear and comfortable level.

[0120] Y key: Brightness adjustment of distant viewing panel: 8 levels, adjust to a clear and comfortable level.

[0121] Power button: single click to turn on, then single click to turn off. The machine is designed to be turned on continuously for 10 years, in order to facilitate instant training for users. The power consumption is very low (only 1 watt), and it is recommended not to shut down the machine at ordinary times. Please unplug the power supply when not in use for a long time.

[0122] Note:

[0123] 1The function of this therapeutic device is to train the eyes to quickly restore their collaborative focusing ability when moving. Please use the back-and-forth scanning eyes in your daily life (do not stare at one point). During the treatment, it is recommended not to wear glasses to see near without affecting your daily life.

[0124] 2) Before your vision fully recovers, it is strongly recommended that you wear glasses when driving a motor vehicle, looking at a blackboard, or doing other long-distance tasks, because myopia glasses can weaken the impact of nearby light, improve your ability to focus and concentrate at a distance, help reduce fatigue when looking at distant objects, and significantly improve driving safety.

[0125] 3) The longer the myopia lasts, the longer it will take to recover. Skipping rope (light jumping) 1,000 times a day or doing more outdoor exercise can improve the treatment effect.

[0126] 4) It is normal to feel swollen eyes after treatment, which means that the eye muscles have undergone a large-scale focusing exercise. The treatment time can also be shortened appropriately.

Claims

1. A therapeutic device for correcting myopia by staring with the naked eye, characterized in that: The outer shape of the device is a cylinder or a multi-curved body. The device is placed in a vertical or horizontal position on a table outside the near point of the gazer's eyes or hung on a wall outside the near point of the gazer's eyes. A light-transmitting window (24) is provided on the front of the housing (2). A rear-stage reflector (4) is provided in the housing (2) at a position opposite to the light-transmitting window (24). The rear-stage reflector (4) can be used to clearly image the text pattern on the object side target plate (3) in a manner that the opening angle is adjustable and the image is located at the far point of the gazer's eyes, and the image is reflected outside the housing (2) by the light-transmitting window (24). The object side target plate (3) is arranged in the housing (2) and is located on the other side of the rear-stage reflector (4). The rear-stage reflector (4) is a spherical reflector or a plane reflector. When the rear-stage reflector (4) is a spherical reflector, its radius of curvature is 400-6000 mm, the angle between the center normal of the spherical reflector and the plane where the light-transmitting window (24) is located is 5-45 degrees, and the object side target plate (3) is located between the object side focal plane of the spherical reflector and the spherical reflector; An image distance adjustment component (5) is provided on the side of the housing (2) for adjusting the opening angle of the image clearly imaged in the rear-stage reflector (4) entering the pupil of the gazer by changing the spatial position or tilt angle of the rear-stage reflector (4); On the optical path between the object side target plate (3) and the rear-stage reflector (4) in the housing (2), a refraction and reflection system is provided, which is composed of a plurality of optical mirrors such as a plane or spherical reflector, a spherical convex lens, and a spherical concave lens, and is designed and combined according to the optical imaging principle.

2. The therapeutic device for correcting myopia by naked eye gaze according to claim 1, characterized in that: The folding and reflecting system emits the text pattern object points on the object side target plate (3) as parallel light image rays through the rear-stage reflector (4).

3. The therapeutic device for correcting myopia by naked eye gaze according to claim 2, characterized in that: The catadioptric system is composed of a first convex lens, a first plane reflector (8) and a telescope lens assembly arranged in reverse, the rear-stage reflector (4) is a plane reflector, the object-side target plate (3) is located on the object-side focal plane of the first convex lens, the first plane reflector (8) is located obliquely above the first convex lens, the telescope lens assembly is a Keplerian telescope lens assembly or a Galilean telescope lens assembly, and the telescope lens assembly is located in the optical path between the first plane reflector (8) and the rear-stage reflector (4).

4. The therapeutic device for correcting myopia by naked eye gaze according to claim 3, characterized in that: An image distance adjustment component (5) is provided on the side of the housing (2) for adjusting the opening angle of the image clearly imaged in the rear-stage reflector (4) entering the pupil of the gazer by changing the spatial position of the first plane reflector (8) and / or the telescope lens assembly.

5. The therapeutic device for correcting myopia by naked eye gaze according to claim 1 or 4, characterized in that: An angle adjustment component (6) capable of adjusting the reflection angle of the rear-stage reflector (4) is provided beside the image distance adjustment component (5); the angle adjustment component (6) is a manual knob or an automatic remote control component.

6. The therapeutic device for correcting myopia by naked eye gaze according to claim 1 or 4, characterized in that: The image distance adjustment component (5) is a manual knob or an automatic remote control component, the inner end of which is connected to a transmission mechanism (7), and the transmission mechanism (7) includes a rack transmission, a screw transmission, a rope transmission or a chain transmission.

7. The therapeutic device for correcting myopia by naked eye gaze according to claim 1 or 4, characterized in that: A numerical display window (22) for displaying the visual intensity corresponding to the image in the rear-stage reflector (4) that can be clearly seen or the simulated distance of the image is also provided on the front side of the housing (2).

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