CN2128875Y - Improved glasses for curing amblyopia of children - Google Patents

Abstract

The utility model discloses a pair of improved glasses for curing children's amblyopia, which comprises an eyeshade, eyepieces, red luminous diodes, yellow luminous diodes, a spectacle frame, a power supply, a selection switch and an oscillation circuit. The two sets of luminous diodes are arranged at the focus positions of the eyepieces. The separation distance of the red luminous diodes equals to the average interpupillary distance of a human eye, and the separation distance of the yellow luminous diodes are smaller than the average interpupillary distance. The eyepieces are respectively fixed in the right-left halves of the spectacle frame of the eye shield, and the two eyepieces whose central distances equal to the average interpupillary distance of the human eye have an identical focal length. The utility model has the advantages of visual stimulation point, no training for users, simple structure, light weight and small size, applicable to amblyopes of different ages from kindergarten children to secondary school students.

Description

Improved glasses for curing amblyopia of children

This utility model relates to a kind of modified model children's myopia using control glasses of preventing and treating the eyes amblyopia.

According to the statistics in the global range, children's amblyopia sickness rate is about 1%～3%, as untimely treatment, reach a dating after, amblyope vision and eyes are looked function and can not be recovered.Therefore, the early discovery of children's amblyopia and treatment, significant to protection juvenile's vision and promotion visual development.

Juvenile's eyes amblyopia is through suitable treatment, and it is normal that vision generally can be recovered.The method of treatment amblyopia mainly contains occlusion therapy, and penalization is admittedly look training, big amblyoscope training and pharmacotherapy etc.Wherein big amblyoscope therapy and pharmacotherapy, the restriction because of aspects such as operation and equipment is not suitable for the especially treatment of child's amblyopia of children, so can't popularize.Occlusion therapy and penalization then are the methods that comparatively extensively adopts, and its objective is the covering dominant eye, force and use the amblyopia eye, give the amblyopia eye to look the chance of object alone admittedly, correct off-centre and look admittedly; Eliminate the inhibition of dominant eye, promote the vision of amblyopia eye the amblyopia eye; The vision that makes two is near balanced.Domestic existing a kind of amblyopia control device based on the covering method principle, its structure be, a red light emitting diodes respectively is installed about in a secondary common eyeshield, to be good for the eye-shade lid during use, amblyopia eye fixation one dodges a light emitting diode that goes out, and long-term the exercise can be played the effect of treatment amblyopia.There are many defectives in this amblyopia control device on structure and function.At first, adopt one one to dodge a red light emitting diodes that goes out,, can make the very fast generation asthenopia of amblyopia eye, can not attract the child to take regular exercise because of its fixed-site; Secondly, led color is single, and life-time service may suppress normal colour vision functional development; Once more, light emitting diode places about 2 centimetres of distant places at the moment, will make eyes be in high-strung adjustment state, can not remove adjusting, also just can't keep the constant of angle of strabismus; At last,, be the disperse shape, stimulus intensity is reduced greatly, can not stimulate fovea centralis effectively, influence the raising of amblyopia eye vision because fundus image is unintelligible.

The purpose of this utility model is the physiological principle according to the treatment children's myopia using, in conjunction with occlusion therapy and penalization, provides a kind of modified model children's myopia using control glasses that can prevent and treat amblyopia effectively.Its function comprises the enhancement vision, and correction off-centre is looked admittedly and recovered two and look three aspects of function.

This utility model is taked following measures in order to achieve the above object: it comprises eyeshield, the eyepiece group, and red light emitting diodes, yellow light-emitting diode, mirror holder, power supply, selector switch, oscillating circuit, two groups of light emitting diodes wherein all place the focus place of eyepiece group.The spacing of red light emitting diodes equals the average interpupillary distance of human eye, and the yellow light-emitting diode spacing is less than average interpupillary distance, and the eyepiece group is fixed on respectively in the left and right sides picture frame of eyeshield, and the focal length of two eyepieces is identical, and its centre-to-centre spacing equals the average interpupillary distance of human eye.

The advantage of modified model children's myopia using control glasses is: in conjunction with the advantage of occlusion therapy and penalization, overcome the shortcoming of existing amblyopia treatment device, thereby evident in efficacy; The thorn laser point that instrument adopted is directly perceived, and user must be through training, applicable to the amblyope of all ages and classes from the kindergarten to middle and primary schools; Glasses volume in light weight is little, for pocket; Not only can prevent and treat amblyopia effectively, the rectification of stravismus is taken exercise also certain effect; Instrument has interest, can attract children to do secular exercise, is suitable for popularizing in middle and primary schools and kindergarten.

Below in conjunction with accompanying drawing, the structure of the modified model children's myopia using being prevented and treated glasses is described in detail.

Fig. 1 is the horizontal sectional drawing according to a most preferred embodiment of modified model children's myopia using control glasses of the present utility model;

Fig. 2 is the oscillating circuit figure of modified model children's myopia using control glasses shown in Figure 1;

Fig. 3 is the mirror body and the circuit housing sketch map of modified model children's myopia using control glasses shown in Figure 1.

With reference to accompanying drawing 1 and Fig. 3, modified model children's myopia using control glasses of the present utility model comprise a housing 20 of inserting the mirror body 21 of whole opticses and inserting whole electric components.Mirror body 21 is channel structures, by eyeshield 1, places the red light emitting diodes 3,7 in the eyeshield, the compositions such as left and right sides eyepiece 2,8 of yellow light-emitting diode 4,6 and short focal length, and wherein the layout of light emitting diode is respectively to be two of red Huangs in the passage of the left and right sides.Eyepiece 2 is identical with 8 focal length, and horizontal spacing is pressed the average interpupillary distance of human eye and arranged.All light emitting diodes all place the place, focal plane of eyepiece, and through behind the eyepiece, their optical image at infinity can be removed eyes like this and regulate, and makes it be in the natural relaxation state.Spacing in the passage of the left and right sides between the red light emitting diodes 3 and 7 is identical with the spacing of left and right sides eyepiece, also equals the average interpupillary distance of human eye, and yellow light-emitting diode 4 and 6 spacing are less than average interpupillary distance.When red and yellow light-emitting diode alternately flash, because of the variation of color and position is arranged, can attract the amblyopia eye to accept stimulation continuously, in therapeutic process, be unlikely to produce asthenopia.Simultaneously, when red light emitting diode was glittering, the amblyopia eye optical axis scattered automatically, invested the infinity; When yellow light-emitting diode was glittering, the amblyopia eye optical axis is inwardly set automatically, therefore can constantly temper eye muscle, partly plays the effect of control stravismus.The effect of eyeshield 1 is to hide eyes, makes dominant eye be subjected to constrain and is not subjected to light, and forcing the amblyopia eye independently to accept luminous point stimulates, and promotes its vision.Eyeshield 1 is furnished with mirror holder 9 and 10, can equally with common spectacles wear easily.Dominant eye is under the complete dark condition during work, and the amblyopia eye is then watched redness and the yellow light-emitting diode luminous point that alternately flashes automatically attentively.Owing to introduced eyepiece, make the optical image of luminous point be positioned at the infinity, need not regulate and just can obtain nethike embrane fundus image clearly, this can make to stimulate and concentrate, and increases the captivation of sighting target luminous point to the amblyopia eye, improves the effectiveness of treatment.Adopt redness and yellow light-emitting diode but not white luminous point, purpose is for focused stimulation macula retinae fovea centralis district.Fovea centralis only has cone cell, cone cell is to red and yellow isochrome photaesthesia, and the rod cell of periphery is insensitive to coloured light, so adopt redness and yellow luminous point can force the amblyopia eye to use the macula lutea fovea centralis to look admittedly, improve the vision of fovea centralis effectively, suppress the solid viewpoint of off-centre that amblyopia and squinting eye may exist simultaneously.

The oscillating circuit of modified model children's myopia using control glasses shown in Figure 2, its effect is to produce periodic electric pulse, alternately puts shiny red and yellow light-emitting diode.The main body of oscillating circuit 19 is 74LS04 ungated integrated circuit chips 14, also comprises resistance 13,15, adjustable resistance 16, electric capacity 17, power supply 12, on and off switch 11 and selector switch 18.Behind the power-on switch 11, oscillating circuit 19 starting oscillations, constantly at the pulse signal of A point and B point or C point and D point output square wave form, the high level part of square wave can be lighted light emitting diode, and the low level part of square wave is extinguished light emitting diode again.Owing to linked by logic inverter between A point and B point and C point and the D point in the circuit, so the A point is identical with the square-wave signal form of B point output, but the position is mutually opposite: when the A point was output as high level, the B point was in low level; When the A point was output as low level, the B point was a high level.The C point is identical with it with the current potential form that D is ordered.According to the amblyopia eye is left eye or right eye,, when selecting switch to dial to the left side, will alternately light red light emitting diodes 3 and yellow light-emitting diode 4 left with 18 groups of selector switches or the right; When selecting switch to dial to the right, red light emitting diodes 7 will alternately be lighted with yellow light-emitting diode 6.Glitteringly determined with time cycle of extinguishing parameter value by resistance 15,16 and electric capacity 17.Setting this cycle in this utility model was 5 seconds, can guarantee that like this macula lutea fovea centralis is subjected to sufficient stimulation.As required, the time cycle can change by regulating adjustable resistance 16.

Figure 3 shows that the mirror body and the circuit housing sketch map of modified model children's myopia using control glasses.All electric components all place in the circuit housing 20, and the circuit surface of shell is equipped with on and off switch 11 and selector switch 18, electric wire 5.

Because modified model children's myopia using control glasses of the present utility model combine the superiority of occlusion therapy and penalization, and taked the introducing eyepiece, adopt the light emitting diode of two groups of different colours, adjust the spacing between the luminous point and regulate the luminous point series of improving measures such as time of flashing, thereby can play the effect that prevents and treats children's myopia using well, reach the purpose of three aspects of treatment amblyopia.

Claims (1)

1, a kind of modified model children's myopia using control glasses, it is characterized in that it comprises: eyeshield [1], eyepiece group [2], [8], red light emitting diodes [3], [7], yellow light-emitting diode [4], [6], mirror holder [9], [10], power supply [12], selector switch [18], oscillating circuit [19], its two groups of light emitting diodes [3], [4] and [6], [7], all place eyepiece group [2], [8] focus place, the spacing of red light emitting diodes [3] and [7] equals the average interpupillary distance of human eye, the spacing of yellow light-emitting diode [4] and [6] is less than average interpupillary distance, the eyepiece group is fixed on respectively in the left and right sides picture frame of eyeshield, and the focal length of two eyepieces is identical, and its centre-to-centre spacing equals the average interpupillary distance of human eye.

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