Visual training device capable of being controlled by single person

Abstract

The utility model relates to the technical field of visual training equipment, in particular to a visual training device controllable by a single person, which is characterized in that a green ball, a yellow ball and a red ball which can slide are sequentially arranged on a main body rod with a scale, a reverse racket main body is arranged at one end of the main body rod, and telescopic tripods are arranged at the lower parts of two ends of the main body rod. According to the structure of the reversal bat body, two lens units are arranged, an upper lens and a lower lens in each lens unit are connected through a connecting part, and the interpupillary distance ruler penetrates through the connecting parts of the two lens units so that the four lenses can be located on the same plane. The middle of the interpupillary distance ruler is connected with a buckle through a connecting rod, and the buckle is clamped and fixed with the main body rod. The device can be operated by a single person, and the main body rod is provided with the scales, so that the training is more accurate and more efficient. And the reversing racket can be quickly overturned, the operation is convenient, and the time of a visual trainee is greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vision training equipment, in particular to a single-person controllable vision training device. Background Art

[0002] At present, visual function problems have received much attention from ophthalmologists and optometrists because they are insidious and often confused with visual fatigue and worsening myopia, manifesting as headaches, eye swelling, difficulty in near vision, double vision, missing words, and serial reading, which seriously affect people's work and study. In clinical practice, relevant visual training is generally given to patients with abnormal visual function to maintain comfort and coordination in daily eye use, relieve eye fatigue and discomfort, make eyes healthier, and make reading more comfortable and lasting.

[0003] The history of visual training dates back to the second half of the 19th century. Professor Javal, a famous French ophthalmologist who is considered the "father of orthophthalmia", first used it to eliminate strabismus and other binocular vision and binocular movement abnormalities in the visual training process. In the biological world, ducks' webbed feet are suitable for paddling, and the hollowness of bird bones and feathers is to reduce the burden of flying. Therefore, biologists believe that structure determines function, and vice versa. Structurally, the eyeball is a lively sphere and also needs to move constantly. As the French thinker Voltaire said, "Life lies in movement", this concept has been accepted by more and more people. Similarly, if we want to have bright and flexible eyes, we also need to move our eyes. When a person's eyes are constantly staring at books, TVs, iPads and other items for a long time, the eyes will gradually lose the ability to see distant scenes clearly, and it is easy to have sore eyes, swollen eyes, blurred vision and double vision. Appropriate multi-directional visual training can effectively relieve eye fatigue caused by lack of eye movement.

[0004] As an effective training tool for visual training, the convergence ball has always been favored by ophthalmologists and patients. However, the convergence balls currently on the market have poor stability and require two people to cooperate in training. The training time is long or there is a sense of shaking, which causes discomfort to patients. Although there are several smart products based on the convergence ball principle on the market, their control structure is too complicated and the price is relatively high. They cannot meet the needs of most consumers and are only used for training the convergence function. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a new visual training device, which solves the above-mentioned technical problems to a certain extent.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a single-person controllable visual training device, a main body rod with a ruler is provided with slidable green ball, yellow ball and red ball in sequence, a reverse racket body is provided at one end of the main body rod, and telescopic tripods are provided at the lower parts of both ends of the main body rod.

[0007] The above-mentioned single-person controllable visual training device has a reverse camera main body structure as follows: two groups of lens units are provided, the upper and lower lenses in the lens units are connected by a connecting part, and the pupil distance ruler passes through the connecting part of the two groups of lens units so that the four lenses are in one plane; the middle part of the pupil distance ruler is connected to the buckle through a connecting rod, and the buckle is fixed to the main body rod.

[0008] The above-mentioned single-person controllable vision training device has a pupil distance ruler with a scale of 1 mm per small grid and 10 mm per large grid. The 0 scale is aligned with the position of the main rod and extends to both ends.

[0009] In the above-mentioned single-person controllable vision training device, a coupling is fixed in the middle of the pupil distance ruler, a sliding sleeve is arranged outside the coupling, a tension knob passes through the sliding sleeve and contacts with the coupling, and the sliding sleeve is fixed to the connecting rod.

[0010] The above-mentioned single-person controllable vision training device has a support adjustment part on the top of its telescopic tripod, and the top ends of the three legs are fixed to the ears of the support adjustment part by bolts.

[0011] In the above-mentioned single-person controllable vision training device, the main body rod is a telescopic rod.

[0012] The utility model has the following beneficial effects:

[0013] 1. Stability is guaranteed. In the training of the gathering ball, it was found that the gathering ball needed to be operated manually, the rope was not stable, there was a sense of shaking, and there was no scale. During the training, the gathering ball needed to be pushed back and forth with a ruler to measure again and again. To address this problem, the single-person controllable visual training device has strong stability. There is a scale on the main rod to make the training more accurate and efficient.

[0014] 2. Single-person operation is possible. Conventional ball gathering and dispersing training requires at least two people to complete. When a special situation occurs and the trainer can only operate alone, the visual training will be delayed and improper operation is likely to occur. The utility model can solve this problem and the training can be completed alone.

[0015] 3. The reverse beat in this device can relieve eye fatigue and exercise eye flexibility. Looking at things through the positive lens (convex lens) can train the patient's eye relaxation function, while looking at things through the negative lens (concave lens) can train the eye's adjustment function. The reverse beat can effectively improve the patient's eye adjustment sensitivity and enhance the eye's adjustment range, which has a certain effect on eye health.

[0016] 4. The function of the utility model invention is to conduct two visual trainings, vergence and accommodation, through one device. The device can be controlled by one person, and one person can conduct the training, which is convenient to operate and greatly saves the time of the visual trainer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a single-person controllable vision training device.

[0018] Figure 2 It is a structural schematic diagram of a single-person controllable vision training device from another angle.

[0019] Figure 3 It is a schematic diagram of the structure of the reverse camera body.

[0020] Markings in the figure: 1 telescopic tripod; 2 lens unit; 3 slide; 4 connecting rod; 5 connecting part; 6 coupling; 7 main rod; 8 bracket adjustment part; 9 tension knob; 10 buckle; 11 reverse racket body; 12 green ball; 13 yellow ball; 14 red ball; 15 pupil distance ruler. DETAILED DESCRIPTION

[0021] Embodiment 1 A visual training device controllable by one person

[0022] A visual training device controllable by one person, a main body rod 7 with a ruler is provided with a slidable green ball 12, a yellow ball 13, and a red ball 14 in sequence, one end of the main body rod 7 is provided with a reverse racket body 11, and a telescopic tripod 1 is provided at the lower part of both ends of the main body rod 7. A bracket adjustment part 8 is provided at the top of the telescopic tripod 1, and the top ends of the three legs in the telescopic tripod 1 are fixed to the ears of the bracket adjustment part 8 by bolts.

[0023] The structure of the reverse camera body 11 is as follows: two groups of lens units 2 are provided, the upper and lower lenses in the lens unit 2 are connected by a connecting portion 5, and the pupil distance ruler 15 passes through the connecting portion 5 of the two groups of lens units 2, so that the four lenses are in one plane. A coupling 6 is fixed in the middle of the pupil distance ruler 15, and a sliding sleeve 3 is provided outside the coupling 6. The tension knob 9 passes through the sliding sleeve 3 and contacts the coupling 6, and the sliding sleeve 3 is fixed to the connecting rod 4. The connecting rod 4 is connected to the buckle 10, and the buckle 10 is fixed to the main rod 7 by clamping.

[0024] The scale of the pupil distance ruler is 1mm per small grid, and 10mm per large grid. The 0 scale is aligned with the position of the main rod, and the scale extends to both ends. The patient needs to move the connecting part 5 of the two sets of lens units 2 to align it with the position of the patient's monocular pupil distance.

[0025] The telescopic tripod 1 can be adjusted in length by 20-100 cm. The bolts of the ear pieces on the bracket adjustment part 8 can be adjusted to thereby adjust the distance between the legs.

[0026] The main rod 7 is 120cm long and 8mm in diameter. Made of new light metal material, it is more stable than the wire-connected convergence balls on the market, and does not need to be held for a long time, which is convenient for better visual training. The cylindrical connection device with scales is 5cm per scale, and special marks are made at 30cm, 60cm, and 90cm from the nose. Because every two small balls are 30cm apart, the training is more accurate.

[0027] The main body rod 7 is a telescopic rod.

[0028] The diameters of the green ball 12, the yellow ball 13 and the red ball 14 are 15mm-16mm. The surface of the three-color ball is a matte surface and is made of acrylic material.

[0029] The buckle 10 is mainly used to connect the reverse racket body 11 and the main rod 7.

[0030] The pupil distance ruler 15 is made of a new light metal material, is used to adjust the pupil distance, enables the trainee to perform precise individualized training, and is connected to fix the lens units 2 on both sides.

[0031] The pupil distance ruler 15 is fixedly connected to the coupling 6, and the coupling 6 rotates 180 degrees inside the sliding sleeve 3 to adjust the upper and lower positions of the lenses in the lens unit 2. The tension knob 9 is tightened to fix the position of the lens unit 2.

[0032] The main body of the reverse racket is divided into two groups of left and right lens units 2, and the lens unit 2 includes a frame and lenses located in the frame. Each group of lens units 2 includes two upper and lower lenses, and the lenses include convex lenses (positive lenses) and concave lenses (negative lenses). During training, one of the groups can be used alone for left eye or right eye training, or both groups can be used for binocular training. When doing binocular training, it is required that the two upper lenses are convex lenses and the two lower lenses are concave lenses to ensure the coordination and consistency of binocular training. The reverse racket is used to change the accommodative stimulation, the positive lens reduces the accommodative stimulation, the negative lens increases the accommodative stimulation, and the convergence stimulation remains unchanged, so the change of accommodative convergence is accompanied by a change of fusional convergence of equal magnitude but opposite direction. During training, both eyes look at the two upper lenses at the same time, and then they can be rotated up and down 180° to observe the next group of lenses.

[0033] Method of using the single-person controllable visual training device 1:

[0034] (1) Place a single-person controllable visual training device on a flat surface or table. The trainee should tilt his head slightly upward and place the tip of his nose against the end of the device that is closer to the red ball, so that his line of sight is parallel to the ball.

[0035] (2) The red ball is placed 30 cm away from the tip of the nose, and the yellow and green balls are placed 60 cm and 90 cm away respectively.

[0036] (3) Look at the red ball nearby and use your peripheral vision to observe whether the yellow and green balls become two. After looking at it for 5 seconds, switch to looking at the yellow ball and use your peripheral vision to observe whether the red and green balls become two. After looking at it for 5 seconds, switch to looking at the green ball and observe whether the red and yellow balls become two. Also look at it for 5 seconds.

[0037] (4) After repeating the above steps 3-4 times, move the red ball 5 cm closer to the tip of the nose, while keeping the distance between the yellow and green balls unchanged.

[0038] (5) Repeat all the actions in step (3), moving the red ball 5 cm each time. After each movement, perform 10 convergence and divergence movements.

[0039] (6) The end point of the red ball is 2.5 cm in front of the tip of the nose.

[0040] (7) After the practice, store the device for the next practice.

[0041] Method 2 for using the visual training device that can be controlled by one person:

[0042] (1) Place the single-person controllable vision training device on a flat ground or table, place a near vision chart, and adjust the length of the main rod 7 so that the eye is 40 cm away from the near vision chart and the light is good.

[0043] (2) When training, start with one eye (i.e., cover one eye and train the right eye first, then the left eye), and then both eyes.

[0044] (3) The principle of starting with the easy and then moving on to the difficult should be followed during training. At the beginning of training, first look through the positive lens, and after identifying the sight mark, quickly flip the lens unit 2 and use the negative lens to look at the next sight mark, and after identifying it, flip it again to the positive lens to look at the next sight mark, and so on.

[0045] (4) Keep training, 2-3 times a day, 10-15 minutes each time.

[0046] (5) Standard: Train until the reaction time is no less than 1 cycle / 3 seconds, that is, 20 cycles per minute, and the difference between the two eyes should be less than 2 cycles. Customizing such a standard can give the eyes more room for compensation. Here, one cycle refers to the reverse shooting of the positive and negative lenses to see clearly once - using ±2.00D reverse shooting, -2.00D is seen clearly once, +2.00D is seen clearly once, that is 1 cycle.

[0047] In addition, there are a few points to note when using it:

[0048] (1) The convergence ball requires training of both eyes at the same time and cannot be used for one eye alone.

[0049] (2) When looking at a nearby ball, you can remind yourself that you are looking “close” and need to focus your eyes.

[0050] (3) When looking at a ball in the distance, you can remind yourself that you are looking “far away” and need to relax your eyes.

[0051] (4) The three colors of the convergence and dispersion spheres must meet the normal spectrum color. Color cast can easily cause fatigue symptoms and dry eyes, which is not good for eye health.

[0052] (5) Vergence ball and reverse racket can be trained at the same time. In this case, there is no need for a near vision chart. By switching between the positive and negative lenses of the reverse racket, the degree of vergence can be changed when increasing or decreasing accommodation. The difficulty is increased. Vergence training can be performed first, and then accommodation training can be added.

Claims

1. A visual training device controllable by one person, characterized in that: A main rod (7) with a ruler is provided with a slidable green ball (12), a yellow ball (13), and a red ball (14) in sequence, one end of the main rod (7) is provided with a reverse racket body (11), and the lower parts of both ends of the main rod (7) are provided with telescopic tripods (1); The structure of the reverse camera body (11) is as follows: two groups of lens units (2) are provided, the upper and lower lenses in the lens units (2) are connected via a connecting portion (5), and the pupil distance ruler (15) passes through the connecting portions (5) of the two groups of lens units (2) so that the four lenses are in the same plane; the middle part of the pupil distance ruler (15) is connected to the buckle (10) via a connecting rod (4), and the buckle (10) is fixedly connected to the main body rod (7) by buckling.

2. A single-person controllable visual training device according to claim 1, characterized in that: The scale of the interpupillary distance ruler is 1mm per small grid, and 10mm is a large grid. The 0 scale is aligned with the position of the main rod, and the scale extends to both ends.

3. A single-person controllable visual training device according to claim 1, characterized in that: A coupling (6) is fixed in the middle of the pupil distance ruler (15), a sliding sleeve (3) is provided outside the coupling (6), a tension knob (9) passes through the sliding sleeve (3) and contacts the coupling (6), and the sliding sleeve (3) is fixed to the connecting rod (4).

4. A single-person controllable vision training device according to claim 1, characterized in that: A support adjusting portion (8) is provided on the top of the telescopic tripod (1), and the top ends of the three legs are fixed to the ears of the support adjusting portion (8) by means of bolts.

5. A single-person controllable vision training device according to claim 1, characterized in that: The main rod (7) is a telescopic rod.

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