CN2885189Y - A myopia preventive and treatment device for reading and writing - Google Patents

Abstract

The utility model relates to a shortsighted prevention machine for reading or writing, which comprises a frame (1), a primary plane mirror (4), a secondary plane mirror (11) and an eyesight hole (7). The utility model is characterized in that the primary plane mirror (4) reflects object beam of view field directly, and the length of whole light path is (S=S1+S2+S3) no less than 300mm and less than 500mm. Lens or battery of lens are arranged on an eye lens. The utility model has a wide view field and high applicability. The non-tired of the eyes, the fluent reading and writing can increase the time of working or studying, and shortsighted is prevented effectively. The preventing effects are improved according to different shortsighted levels of specific crowds or individuals. Meanwhile, eye span and aspect angle are adjusted, the convenient use can correct sitting posture to prevent cervical vertebra diseases. The utility model is particularly suitable for the persons who read or write for a long time.

Description

A kind of anti-myopia apparatus for reading and writing

Technical field

This utility model belongs to the physiotherapy training device technical field that is used for eyes.

Background technology

The inventor had once invented a kind of Reading telescope, and the license notification number is CN2451083Y, and it has one, and the lens barrel upper port is a peep-hole with two lens barrels that reflection is curved, and the lens barrel lower port is equipped with a magnifier.This Reading telescope utilizes optical principle, has elongated and has been looked the distance of thing to human eye, and effect is better, but this Reading telescope is owing to be subjected to the restriction of long lens barrel, and its visual field is less, uses inconvenience, is easy to produce asthenopia, and prevention effect is poor.And be magnifier below, strict to magnifier to the required distance of looking thing, bring considerable restraint and inconvenience to user, reckon without the vision difference of user when using simultaneously, so can not reach comparatively ideal use and prevention effect.

Summary of the invention

The purpose of this utility model provides a kind of anti-myopia apparatus for reading and writing, and it affords a wide field of vision, and the suitability is strong,, the eyes indefatigability, can be prevented and treated myopia effectively preferably at energy prolongation work or learning time.Especially being fit to teenager uses.

Main technical schemes of the present utility model is: a kind of anti-myopia apparatus for reading and writing, comprise support, plane mirror, secondary plane mirror and an eyesight, it is characterized in that a plane mirror directly reflects field-of-view objects light, total optical path length (S=S1+S2+S3) is more than or equal to 300mm, less than 5000mm.

Above-mentioned anti-myopia apparatus for reading and writing according to the angle difference of plane mirror, can have 1 or 2 visuals field, makes things convenient for eyes to regulate and has a rest.

Above-mentioned anti-myopia apparatus for reading and writing also can be provided with a shade, and a described plane mirror and secondary plane mirror all are contained in this shade, and the visual field also can be bigger.

Above-mentioned eyesight place can be provided with lens or battery of lens, to strengthen its use and prevention effect.

The diopter Φ of above-mentioned lens or battery of lens can be by following formula preparation, Φ=1/U+A+B, and wherein U is default total optical path length (S), and A is near-sighted degree, and B is for defocusing diopter.

The diopter Φ of above-mentioned lens or battery of lens also can be 2D～0.75D, for fixed, wear the glasses of having joined applicable to different individualities and carry out myopia preventing and treating in read-write, and at this moment, general U is 0.5m～1.3m, the desirable 0～1.5D of B.

Easy to use for regulating, correcting sitting postures, can be provided with on the above-mentioned support shade up and down and/or the rotation adjustable mechanism, also can be provided with a plane mirror up and down and/or the rotation adjustable mechanism of rotation adjustable mechanism and secondary plane mirror.

More natural for read-write, angle the best of the axis of above-mentioned eyesight and horizontal plane is 10 °～40 °, for correcting sitting postures, prevents cervical spondylosis, also can be provided with forehead on above-mentioned a kind of anti-myopia apparatus for reading and writing and prop up and fill up and/or chin props up pad.Forehead props up pad and/or chin and props up pad and can be position adjustable.

About preventing and treating bathomorphic mechanism:

At China and even international myopia research academia; exist many different viewpoints to preventing and treating myopia; the effectively preventing method because not occurring a kind of generally acknowledging as yet, so very chaotic to the understanding of this problem, this utility model is corrected several viewpoints and is proposed the mechanism of preventing and treating of the present utility model.

One, think that myopia is human evolution's result, difficulty has overcome even has thought that myopia is decided by gene, this is very wrong, simply say Darwinian theory of evolution explanation, a kind of result that evolves needs the very long time, and a large amount of now multiple myopia, only betide on the second filial generation third generation person, there is not progressive process, bathomorphic thus generation is not decided by human evolution and heredity, and be decided by that the modern uses the custom and the visual environment of eye, the less read-write of our ancestors is seen near and is lived in the wide environment, they are emmetropia or slight hypermetropia, and the develop rapidly of modern's civilization has brought and looks nearly things in a large number and lack wide visual field, has caused the distant vision dysplasia, the near vision excessive development, so myopia has taken place in one or two generation people, be fully possible so will prevent and treat myopia, see that the method for environment far away and condition can accomplish as long as create with avoiding seeing for a long time near.

This utility model is seen work far away seeing near work becomes, thus certainly lead to opposite result, be in theory can prevent and treat bathomorphic.

Two, think the natural growth course of human eye be one from hypermetropia to the necessary process of facing again myopia, in case it is near-sighted promptly irreversible, this viewpoint is unilateral, the baby is born hypermetropia, needs owing to vision in its growth course are constantly seen nearly adjusting, this external condition impels it to develop to emmetropia, if the too early emmetropia that develops into, continue to increase the weight of to see that then it develops into myopia near visual stimulus and burden, so the process of myopiaization is decided by visual environment, owing to see closely to cause and watch near adjusting and growth, caused myopia, on the contrary in a single day near-sighted, far away if many white silks are seen, eye also will develop to emmetropia in the period of development, will see that adjusting far away is oppositely regulating because see eye far away.Then grow and will cause presbyopic probability, anatomy shows that people's intraccular part has to be seen near regulating muscle and sees regulating muscle far away (as dilator pupillae), thus prove and see far and will oppositely regulate, and change to hypermetropia.

Three, method with medicine or operation is prevented and treated myopia, medicine can be divided into: the spasmolytic class, stimulate the excited class of optic nerve, the medicine of Amitin and adjusting control ocular growth speed, operation method has laser cutting to change behind the method for corneal diopter and the eyeball methods such as sclera reinforcing, these methods do not consider that all it closely is to cause bathomorphic this factor of most critical reason that human eye is seen for a long time, so be not the bathomorphic main method of control, as for the laser cutting cornea is to correct defects of vision with to prevent and treat the myopia meaning different, preventing and treating myopia thus should be to solve visual environment, change close eye, this is only the bathomorphic general orientation of control.

Four, myopia is with eye too much, due to the asthenopia, allaying tiredness is capable of preventing myopia, this viewpoint also is unilateral, asthenopia is that to cause bathomorphic reason be inaccurate saying, from the human eyes structure analysis, eye can be seen the thing in the very big distance range clearly, depend mainly on its lenticular dioptric range of accommodation, (as being in night-myopia in empty visual field empty-space or the sleep state) lenticular diopter when eye is not watched fixed target attentively is its Suspensory ligament and the diopter under the coefficient equilibrant of ciliary muscle adjusting power for adult or normal eye, this moment, human eye was in " loosening " state, adjusting power minimum, the vision distance of relaxation state of this adjusting power minimum that experimental results show that human eye is greatly between 0.7 meter-2 meters, it is not the infinite distant place that it is generally acknowledged, so human eye is tireless on this suitable closer distance, when see far away and the closer distance time than long time, asthenopia all takes place easily, only see that wherein near asthenopia causes myopia easily, can alleviate bathomorphic development and eliminate this kind asthenopia.

This utility model has designed the device of adjustable sighting distance, when being transferred to separately suitable distance of different eyes, and the eye indefatigability, so can reduce bathomorphic generation and development, and be transferred to when remote, eye is in sees reverse adjustment state far away, even produce certain tired to treating myopia.

This utility model design principle is as follows:

Bathomorphic generation and development, adjusting with long-time eye, set, nearly perception three aspect factor positive correlation, so catch this three aspects reason, by changing with the eye mode, avoid seeing near, and see far away more or utilize optical principle to reach effect same and prevent and treat myopia, and as can be known to the vision physiological law-analysing of human eye, human eye is being seen when far away naturally: ciliary muscle sees that near adjusting accommodation loosens, the set convergence of eyes reduces, absolute dark footpath absolutelldepth increases, it is far away that vision scenery becomes, the physiological reaction of this three aspect is harmonious, and any one is inharmonious, all can cause the destruction in various degree of looking physiological law and causes discomfort.This utility model designs according to this physiological law just, it prolongs light path by the plane mirror secondary reflection on the one hand, make the people feel to be looked thing and become far away, having increased absolute dark footpath (having reduced absolute parallax) reduces or has eliminated nearly perception, on the other hand, scioptics partly utilize the diopter of lens to replace watching that the diopter of regulating when near reduces or eliminates nearly adjusting of looking of a ciliary muscle or spasm, change the eyes sight line by plane mirror, lens, prism again, binocular integration is reduced.In addition, cause that the visual angle diminishes after far away and be difficult for differentiating (little) when the picture of being looked thing becomes by plane mirror as word, can differentiate because of feeling fuzzy being difficult for myope, utilize lens or battery of lens to amplify the visual angle or suitably correct defects of vision to make and looked the suitability that thing is easy to increase the resolution (as small character) long-time read-write.

So the combination of plane mirror of the present utility model and lens, prism is to realize avoiding seeing closely and seeing resultant effect the best far away that the strongest optics of the suitability is looked meter more.

The utlity model has following good effect: visual field is wide in the visual field, the suitability is strong, the eyes indefatigability, read-write nature, energy prolongation work or learning time, can prevent and treat myopia effectively preferably, and can improve prevention effect at concrete crowd or individual different myopic degrees, it is adjustable to look thing length and sight angle simultaneously, easy to use flexible, but and correcting sitting postures, prevent cervical spondylosis.Use when being particularly suitable for the teenager read-write.

Be described further below in conjunction with embodiment, but not as to qualification of the present utility model.

Description of drawings

Fig. 1 is the structural representation of this utility model embodiment 1.

Fig. 2 is the right view of Fig. 1.

Fig. 3 is the structural representation of this utility model embodiment 2.

Fig. 1, among Fig. 2,1 is support, 2 is about the cross bar of support body, the rotation adjustable mechanism, 3 be a plane mirror along vertical slot bar 5 up and down and the rotation adjustable knob, 4 is a plane mirror, 6 prop up pad for forehead, 7 is eyesight, and 8 is lens or battery of lens, and 9 prop up pad for chin, 10 prop up the pad adjustable knob for chin, 11 is the secondary plane mirror, and 12 is the rotation adjustable knob of secondary plane mirror, and S1 is that a plane mirror is to being looked the thing optical path length, S2 is the optical path length of plane mirror 4 to secondary plane mirror 11, and S3 is lens or the battery of lens optical path length to secondary plane mirror 11.

Among Fig. 3,13 is support body, and one time plane mirror 4, secondary plane mirror 11 all are contained in the shade 14, and lens or battery of lens 8, forehead prop up pad 6 and all be contained on the shade 14, and 15 is guiding mechanism.

The specific embodiment

Referring to Fig. 1, Fig. 2, books are placed on the table top, adjust the height and the anglec of rotation up and down of support body by adjustable mechanism 2 according to people's height, select total optical path length (S=S1+S2+S3) greater than 600mm (the general normal 500～1000mm that gets, 2000mm, 3000mm also can), and adjust the height and the angle up and down of a plane mirror by knob 3, adjust the angle of secondary plane mirror by knob 12, according to near-sighted diopter A, defocus diopter B and select lens or battery of lens diopter Φ with formula Φ=1/U+A+B, when lens are pair of right and left, then the centre-to-centre spacing of two lens have can about transfer leeway, require and form the eccentric effect of spherical lens with the interpupillary distance that adapts to different people, reach the effect of the inside prism of additional substrate, change the set angle of eyes sight line.Adjust chin and prop up pad 10 at correct position, can read and write, control myopia simultaneously, adjust the secondary plane mirror, when making it hide the sight line that human eye outwards sees by eyesight fully, human eye is seen a visual field, otherwise, the eye can see two visuals field, one far away one nearer, be beneficial to human eye and alternately watch use attentively.

Referring to Fig. 3, adjusting shade 14 is proper height, and one time plane mirror, secondary plane mirror are fixed, and lens or battery of lens diopter Φ can be 2D～0.75D, can make U=1/ Φ this moment, and the glasses that emmetrope or myope wear oneself can use control.

Effect of the present utility model is significantly, below is part use-case of the present utility model.

Experimental result is as follows:

Choose the student that uses the read-write of this utility model device (6-14 year) 100 people, half a year service time, method is all used for the reading of doing the homework at every turn, time is not limit, to bring up to 1.0 above persons effective for recovering (healing) raising three behaviors in test (see Table 1 and table 2) after half a year, the statistics effect is: effective percentage 87%, recovery rate (cure rate) 39%.

Survey distant vision with the standard distant vision test chart, be exemplified below table (1)

Sequence number	Name	With preceding	With preceding	With after	With after	Improve line number	Preface	Name	With preceding	With preceding	With after	With after	Improve line number
														Right eye	Left eye	Right eye	Left eye	Right left eye eye			Right eye	Left eye	Right eye	Left eye	Right left eye eye
		1	Poplar * *	0.3	0.4	0.8	1.5	4 6	26	The week * *	0.15	0.15	0.8													0.8	5 5
2	Xing * *													0.3	0.4	0.6	0.6	3 2	27	Cui * *	0.2	0.25	0.8	0.6	6 5
		3	Open * *	0.3	1.0	1.0	2.0	3 2	28	High * *	0.15	0.15	0.4													0.5	4 5
4	Lee * *													0.6	0.8	2.0	2.0	4 3	29	Tall * *	0.6	0.6	1.2	1.2	3 5
		5	Lee * *	0.4	0.4	1.2	1.0	4 3	30	Zhao * *	0.2	0.2	1.0													1.0	7 5
6	The king * *													0.3	0.3	0.8	0.8	3 3	31	Soviet Union * *	0.5	0.25	1.0	0.8	3 5
		7	Liu * *	0.3	0.4	0.6	0.8	3 3	32	The king * *	0.12	0.12	0.5													0.4	5 5
8	Grandson * *													0.25	0.25	2.0	2.0	9 9	33	Open * *	0.25	0.25	1.0	1.0	6 6
		9	Grandson * *	0.6	0.6	1.0	1.5	2 5	34	Poplar * *	0.15 .	0.15	0.5													0.5	5 5
10	Liu * *													0.3	0.4	0.6	0.6	3 2	35	Jiang * *	0.15	0.05	0.6	0.6	6 6
		11	Open * *	0.3	0.4	2.0	2.0	8 7	36	Lee * *	0.2	0.2	1.2													1.0	9 8
12	Appoint * *													0.4	0.8	1.0	1.2	4 3	37	Old * *	1.0	0.25	1.2	0.5	1 3
		13	Slowly *	0.5	0.4	1.2	1.2	4 5	38	The Wei * *	0.2	0.15	0.4													0.4	3 4
14	Poplar *													0.1	0.5	0.25	1.0	4 3	39	The king * *	0.6	0.6	0.8	1.0	1 2
		15	Old * *	0.15	0.6	0.4	1.2	4 3	40	The king * *	0.1	0.12	0.6													0.6	8 7

16	The king * *	0.3	0.3	0.8	1.8	4 4	41	Hao * *	0.5	0.6	0.6	1.0	1 2
														17	Korea Spro * *	0.15	0.15	0.6	0.6	6 6	42	Lee * *	0.3	0.3	0.8	0.8	4 4
18	Leaf * *	0.2	0.2	0.6	0.6	5 5	43	The king * *	0.6	0.8	1.5	1.0	4 3
														19	Surplus * *	0.25	0.25	0.6	0.8	4 5	44	Lee * *	0.6	0.5	1.0	0.8	2 2
20	Lee * *	0.12	0.12	0.8	0.8	8 8	45	The king * *	0.0	0.6	1.2	1.2	3 3
														21	Open * *	0.12	0.12	0.8	0.8	8 8	46	Open * *	0.3	0.4	1.6	0.6	3 2
22	Zhao * *	0.15	0.3	0.6	0.6	6 3	47	Liu * *	0.15	0.5	1.0	1.2	8 2
														23	Open * *	0.16	0.1	0.4	0.4	7 6	48	History * *	0.3	0.5	0.8	1.0	4 3
24	The king * *	0.15	0.25	0.6	1.0	6 2	49	Open * *	0.2	0.2	0.6	0.8	5 6
														25	Zhao * *	0.8	0.8	1.5	1.5	3 3	50	Shao * *	0.12	0.25	0.3	0.3	4 3

Test above-mentioned 100 people results with the SJR-188 rafractive, on average reduce diopter 1.85D, be exemplified below table (2):

Name	With preceding (diopter)		With back (diopter)		Reduce (diopter)
							Right eye	Left eye	Right eye	Left eye	Right eye	Left eye
	Lee * *	-3.27	-5.53	-2.12	-4.00	-1.25							-1.53
Liu * *							-2.25	-3.25	-2.00	-1.00	-0.25	-1.25
	Yin * *	-5.50	-5.75	-2.25	-1.62	-3.25							-4.13
Zhao * *							-2.50	-2.50	-0.37	-0.12	-2.13	-2.38
	Grandson * *	-2.25	-2.00	-1.25	-1.00	-1.00							-1.00
Liu * *							-4.00	-4.50	-1.12	-0.62	-2.88	-3.88
	The merchant *	-5.65	-5.52	-4.50	-3.62	-1.15							-1.90
The king * *							-1.54	-1.85	-0.75	-1.25	-0.79	-0.60

Claims (9)

1, a kind of anti-myopia apparatus for reading and writing, comprise support (1), a plane mirror (4), secondary plane mirror (11) and eyesight (7), it is characterized in that a plane mirror (4) directly reflects field-of-view objects light, total optical path length (S=S1+S2+S3) is more than or equal to 300mm, less than 5000mm.

2, anti-myopia apparatus for reading and writing according to claim 1 is characterized in that being provided with a shade (14), and a described plane mirror (4) and secondary plane mirror (11) all are contained in this shade (14).

3, anti-myopia apparatus for reading and writing according to claim 1 and 2 is characterized in that described eyesight (7) locates to be provided with one or a pair of lens or battery of lens (8).

4, anti-myopia apparatus for reading and writing according to claim 3, the diopter Φ that it is characterized in that described lens or battery of lens (8) is by following formula preparation, Φ=1/U+A+B, wherein U is default total optical path length (S), A is near-sighted diopter, and B is for defocusing diopter, B value 0-1.5D.

5, a kind of anti-myopia apparatus for reading and writing according to claim 4, the diopter Φ that it is characterized in that described lens or battery of lens (8) is 2D～0.75D, U is 0.5m～1.3m.

6, a kind of anti-myopia apparatus for reading and writing according to claim 4, it is characterized in that described support (1) be provided with shade (14) up and down and/or rotation adjustable mechanism (15).

7, a kind of anti-myopia apparatus for reading and writing according to claim 6, it is characterized in that being provided with a plane mirror (4) up and down and/or rotation adjustable mechanism (3), the rotation adjustable mechanism (12) of secondary plane mirror (11).

8, a kind of anti-myopia apparatus for reading and writing according to claim 7 is characterized in that being provided with that forehead props up pad (6) and/or chin props up pad (9).

9, a kind of anti-myopia apparatus for reading and writing according to claim 8 is characterized in that described chin props up pad (9) and is provided with position adjustable mechanism (10).

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