CN2105947U

CN2105947U - Myopia correcting device

Info

Publication number: CN2105947U
Application number: CN 91228996
Authority: CN
Inventors: 程康
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-19
Filing date: 1991-11-19
Publication date: 1992-06-03

Abstract

The utility model relates to a myoporthosis instrument for adjusting and exercising crystalline lenses of eyes, which belongs to medical care articles. According to the different diopters and the different focal distances of people, the instrument automatically controls the displacement of a visual target and regularly moves forwards and backwards in a reciprocating way so as to enhance the refractive power of the eyes; thus, the crystalline lens can be adjusted and visual performance can be enhanced. The utility model is composed of a pair of eye lenses, a visual target turn knob, gears and rack plates, has the advantages of simple structure, easy fabrication and low selling price and is suitable for teenagers.

Description

Myopia correcting device

This utility model relates to a kind of myoporthosis instrument that eye lens is regulated training that is used for, and belongs to medical health care products.

China's youngsters and children myopia sickness rate is very high.According to statistics, near-sighted sickness rate about 25 percent among the pupil, middle school student have reached 50 percent, its main cause is the closely long-time nervous operation of student, and eye hygiene custom is bad etc., cause the eye function accommodative excess, ciliary muscle often is in anxiety and spasticity, and the increase of crystalline lens convexity causes distant vision to descend.Therefore, loose effectively eye ciliary muscle improves the visual accommodation function, removes the eyestrain, is the important measures that control youngsters and children myopia takes place and develops.And the therapeutic instrument that is used for myoporthosis training aspect in the market roughly divides two classes: a class is displacement before and after doing a sighting target automatically in closely by eyepiece, changes visual focus; Another kind of application electric signal generator stimulates magnetic therapy to the eyes relevant acupoints.But, because displacement before and after last class therapeutic instrument is mechanically done automatically, and myope is because of each one diopter difference, visual focus does not wait, when the eyes focal length is just seen sighting target clearly under knowing most state, sighting target still continuing work or front or rear displacement, causes the sighting target image to occur muddled shape endlessly, increases the weight of the asthenopia sense on the contrary.

Task of the present utility model is to improve the weak point that exists in the above-mentioned technology, provide the not only simple but also labour-saving of a kind of manufacturing artificially to control the device of displacement before and after the sighting target, sighting target pattern numbers remake after second or front or rear rhythmic displacement seeing clearly on certain some seat with ametropia eyes focal length for it, make like this and really play the loose eye ciliary muscle and the crystalline lens regulating action of relaxing, to reach the purpose of correcting defects of vision.

This utility model is finished the work by eyepiece, sighting target, knob, gear, rack-plate, lighting source.

This utility model specifically describes with the following Examples.

Fig. 1 is this utility model sketch map.

Fig. 2 is this utility model eyepiece and gearshift sketch map.

According to Fig. 1, shown in Figure 2, myoporthosis instrument casing (1) is annotated with black plastic and is pressed into.The mains lighting supply (9) of sighting target (8) adopts two joint No.5 cells in the instrument, when breakdown on and off switch (2), the ametropia eyes are attached on the eyepiece (3), sight line sees through+and the above eyeglass (5) of 10.00D watches the pattern on the movable sighting target (8) in the cabinet attentively, rotary knob (4) driven gear (6) and rack-plate (7), sighting target (8) pattern to the most clear state is stopped the several seconds down, rotary knob (4) slowly then, sighting target (8) is done displacement forward, sight line occurs muddled shape at a distance and should stop the rotation immediately, at this moment the eyes ciliary muscle is loose, apparatus suspensorius lentis is strained gradually, the crystalline lens convexity reduces to be flat relatively, treat sighting target (8) pattern clear back several seconds on retina, rotary knob (4) is done displacement backward again, when producing muddled shape again on hand, sighting target (8) stops the rotation immediately, at this moment ciliary muscle contraction, apparatus suspensorius lentis is loose gradually, the crystalline lens convexity increases, treat that sighting target (8) pattern continues again to do to have rhythm and pace of moving things ground to do forward or backward motion repeatedly after the clear several seconds on the retina, trained ten minutes at every turn, impel ophthalmic refractive power to strengthen, thereby the generation regulating action improves visual performance.

What all make the shortcoming of equidistant automatic adjustment movement without exception no matter this utility model is according to the myoporthosis instrument diopter that uses on original market, are improved to and do artificial control operation voluntarily because of each one diopter is different.Apparatus structure is simple, and is easy to manufacture, and it is particularly convenient that use is in the family carried, and price is low, is fit to the demand of Chinese's living standard, is beneficial to popularization.

Claims

1, a kind of myoporthosis instrument is made up of eyepiece (3), sighting target (8), knob (4), gear (6), rack-plate (7), it is characterized in that: knob (4) connects gear (6) and rack-plate (7), makes sighting target (8) make the anteroposterior position shifting movement.