CN214375639U - Myopia decompression appurtenance mirror - Google Patents
Myopia decompression appurtenance mirror Download PDFInfo
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- CN214375639U CN214375639U CN202120781594.XU CN202120781594U CN214375639U CN 214375639 U CN214375639 U CN 214375639U CN 202120781594 U CN202120781594 U CN 202120781594U CN 214375639 U CN214375639 U CN 214375639U
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- myopia
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- pressure reduction
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Abstract
The utility model relates to a myopia decompression appurtenance mirror for the crowd who reads for a long time or closely uses eyes. The tool glasses comprise a glasses frame and lenses matched with the glasses frame, wherein the lenses comprise a main lens and an auxiliary lens, the main lens is a concave lens, the auxiliary lens is attached to the front surface or the back surface of the main lens, and the auxiliary lens is formed by combining convex spherical lenses with different diopters with the main lens. In different types of bifocal, multifocal, progressive multifocal lenses; the displacement is calculated by using light refraction to the distance of the individual's myopia habit and the attached power, so that the light source can directly enter the eye as parallel light, rather than using the lens to simulate looking far.
Description
Technical Field
The utility model relates to a myopia decompression appurtenance mirror for the crowd who reads for a long time or closely uses eyes.
Background
The Chinese has 14 hundred million population, the myopia population is over 7 million, besides myopia, many eye vision problems such as amblyopia, astigmatism, strabismus and the like exist, because the visual medicine is only short for more than one hundred years, and is introduced late in China, about 20 years, the vision test is often misdiagnosed, and especially the vision problem of learning disability can be misdiagnosed in the young and young; undetected visual abnormalities often hinder reading, movement, and technical ability during the growth of a child. In addition, visual testing also plays an important role in professional education guides.
The key parameters of the eye geometry that determine optics are the length of the vitreous cavity and anterior chamber, the curvature of the cornea, and the thickness of the crystalline lens. The shape and size of these elements range from infancy to mid-adolescence in early life. In some cases, this may continue to evolve after the adolescent stage, suggesting that the mechanisms regulating eye development are active all the way to adulthood. The refractive state of the eye, in some children, the delicate balance between corneal curvature, vitreous cavity length and possible lens thickness is disrupted, and the vitreous cavity begins at a much faster rate than compensates for corneal applanation and lens thinning, resulting in the development of myopia. This onset of imbalance in eye development marks an interruption in the normal corrective process, usually coinciding with the onset of school education.
The main theories of the existing myopia prevention and control lenses or progressive multi-focus lenses comprise an accommodation lag theory and a peripheral defocus theory. The lag theory of accommodation generates traditional bifocal and progressive addition lenses, both of which use lenses to add prisms or use distance conversion to adjust power to simulate viewing far, and the effect of reducing myopia of children is very low. Evidence from studies around the world indicates that there is a dramatic increase in the prevalence and severity of myopia in children, with the consequence of the risk of eye disease in adults.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome the above-mentioned not enough that exists among the prior art, provide a myopia decompression appurtenance mirror, process into the lens according to the eyeball diopter of wearing person, the reassembling forms myopia decompression appurtenance mirror in the picture frame.
The utility model adopts the technical scheme as follows:
a pair of myopia decompression auxiliary tool glasses comprises a glasses frame and lenses matched with the glasses frame, wherein each lens comprises a main lens and an auxiliary lens, the main lens is a concave lens, the auxiliary lens is attached to the front surface or the back surface of the main lens, and the auxiliary lens is formed by combining convex spherical lenses with different diopters with the main lens.
The use of epiretinal optics to induce paraspinal and/or peripheral myopic defocus, i.e., the formation of a sharp focused image of distant objects on the fovea or macula, and objects formed in front of the retina in the central and/or peripheral image shell outside the distal axis. In different types of bifocal, multifocal, progressive multifocal lenses; the displacement is calculated by using light refraction to the distance of the individual's myopia habit and the attached power, so that the light source can directly enter the eye as parallel light, rather than using the lens to simulate looking far.
Preferably, the primary lens is configured according to the hyperopic eye position parameters such that the relaxed state of the eye position of the eye is always in the emmetropic parallel light eye rotation state.
Preferably, the auxiliary lens is configured according to the near vision position parameters, so that the relaxed state of the eye position of the eye is always in the eyeball rotation state of the far vision parallel light.
Preferably, the power of the auxiliary lens is within the range of +0.75D to +1.50D diopters with a deviation of + -0.12D, and the power is configured according to the meridian displacement parameter of the myopia position.
Preferably, the said accessory lens is circular, the central power is diopter + 0.75D- +1.50D and decreases outwards with concentric circles, the central range is diameter 25 mm, the decreasing range is ellipse, the diameter is wide, narrow, etc. ratio increases, the maximum to ellipse is wide, narrow is 50 mm and 30 mm respectively, the relaxed state of the eye position of the eye always farsighted the eyeball rotation state of the parallel light, provide any relief to the regulation requirement in the near vision task through the accessory lens.
This product can realize:
1. by increasing the significant level, parallel light is provided when light enters the eyeball, eye muscles are in a relaxed state of hyperopia, and correction and myopia alleviation can be achieved; more specifically, during myopia work, both the accommodation and the collection systems appear to be under significant stress. In its principle, therefore, the need for accommodation and the need for a near vision aggregate are balanced in a combined manner,
2. the balance between accommodation and aggregation, taking into account that accommodation may lead to elevated intraocular pressure during myopia work, provides a myopia decompression aid lens to prevent the possible occurrence of myopia, or at least reduce the progression of myopia, or even stabilize myopia.
3. By increasing the significant horizontal displacement power increase, out-of-phase discomfort of the past lens is reduced and the acceptability of the myopic wearer is increased. More specifically, the present product is a myopia-reducing auxiliary tool lens having one or more optical characteristics for making a pressure-reducing tool for people with long-term myopia.
4. The eye position displacement parameter of the auxiliary lens takes the corresponding part of the myopia pupil as a standard, and the deviation of the meridian displacement direction orientation ear side is less than or equal to 0.5 mm. An optical direct view is formed on optics, and parallel light is shown to be infinite, so that the handling requirement of the set adjustment during the near view is met.
5. The attached mirror defaults to +1.50D, but the attached mirror can range from +0.75D to + 2.50D. This feature enables the practitioner to balance and myopia tasks according to previously worn glasses or more accurately the binocular vision of the individual patient. And recalculating the decompression lens at different peripheral powers and the customary reading distance of the patient.
6. Myopia decompression aid glasses may be used to correct or train people with myopia that are difficult and fatiguing, wearing decompression aid glasses that include at least one lens having one or more of the optical characteristics defined above, as will become apparent upon reading the examples given by way of non-limiting example.
7. The preparation method of the lens comprises the steps of adopting optical glass lenses and optical plastic lenses as raw materials, adopting the existing fusion technology or 3D laser printing as auxiliary lenses, and reducing the jumping feeling during the degree change by using the polishing technology. After the completion, the surface multi-layer film plating is carried out to achieve the effect of reducing refraction and reflection, and the myopia decompression auxiliary tool lens can be added with the functional treatment of nano, ultraviolet resistance or blue light resistance and the like.
8. A multi-layer multifocal lens is provided which contains superimposed segments of refractive index of different refractive indices, the superposition providing clear, unrestricted vision through various portions of the lens. Wherein adjacent lens sections have refractive index mixing at their interface, are short in range, and are optimized in profile, thereby connecting the lens sections invisibly and increasing valuable lens area. In a variable index of refraction multi-focal ophthalmic lens, wherein all layers of the lens have a surface of continuous curvature. Wherein each section has substantially constant power across its lateral and vertical extent and there is no mesopic width-limiting corridor.
Drawings
FIG. 1 is a perspective view showing the structure of the lens of the present invention.
Fig. 2 is a schematic diagram of the fusion of the main lens and the auxiliary lens of the product.
Fig. 3 is a diagram comparing the parallel light principle and the simulated myopia according to the embodiment.
FIG. 4 is an exemplary diagram.
Fig. 5 is a schematic view of a negative lens optic.
Fig. 6 is a schematic view of a positive lens optic.
Fig. 7 is a schematic diagram of the convergence effect of the incident beam of the positive lens.
FIG. 8 is a schematic diagram of the divergence effect of incident beams on a negative lens.
FIG. 9 is a schematic view of a sphero-cylindrical lens
FIG. 10 is a schematic view of a first lens of the auxiliary pressure-reducing spectacles for myopia.
FIG. 11 is a schematic view of a second lens of the auxiliary pressure-reducing spectacles for myopia.
Fig. 12 is a schematic view of the overall structure of the product.
Description of reference numerals: the spectacle frame comprises a spectacle frame 1, a main lens 2 and an auxiliary lens 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The design concept is as follows:
aggregation-the collective effects that can occur individually with fixed accommodation, in short the adduction (myopia) and abduction (hyperopia) of the extraocular muscles.
Accommodation-the accommodation that can be exercised alone with a constant aggregate fixation-is simply the function of the ciliary muscle to dominate the look far (relaxed) look near (tight).
Myopia is produced by the combined action of aggregation and accommodation.
As shown in fig. 4, the present product mainly uses the convex lens to reduce the adjustment. The light rays entering the eyes of the human eyes when the human eyes see near are divergent light rays, the light rays when the human eyes see far are parallel light rays, the parallel light rays are just imaged on the normal retina without being adjusted after entering the eyes, and the divergent light rays (namely the light rays when the human eyes see near) can be imaged on the retina only by being adjusted after the human eyes see near. Myopia can be excited by long-term adjustment. The convex lens can condense light, so that divergent light rays can be changed into parallel light rays to enter eyes. Therefore, the book is not adjusted. However, the eyes of the person looking far and near require not only accommodation but also an aggregation, which is performed simultaneously. Therefore, the light rays are dispersed under the action of changing the direction of the light rays entering the eyes through the displacement of the compound lens, and the light rays entering the two eyes are refracted through the lens to become parallel light rays which vertically enter the eyes. The lens accommodation and aggregation can be solved simultaneously by the convex lens displacement. Reading and writing through the lens is as if looking straight at a telescope, and the eye muscles are in a relaxed state.
Example (b):
as shown in fig. 1-3, the present embodiment is a pair of myopia pressure-reducing auxiliary glasses, which comprises a glasses frame and lenses adapted to the glasses frame, wherein the lenses are composed of a main lens and an auxiliary lens, the main lens is a concave lens, the auxiliary lens is attached to the front surface or the back surface of the main lens, and the auxiliary lens is composed of a convex spherical lens with different diopters from the main lens.
This embodiment is the use of epiretinal optics to induce paraspinal and/or peripheral myopic defocus, i.e., to form a sharp focused image of distant objects on the fovea or macula, and objects formed in front of the retina in the central and/or peripheral image shell off the distal axis. In different types of bifocal, multifocal, progressive multifocal lenses; the displacement is calculated by using light refraction to the distance of the individual's myopia habit and the attached power, so that the light source can directly enter the eye as parallel light, rather than using the lens to simulate looking far.
The main lens of the present embodiment is configured according to the hyperopic eye position parameters such that the relaxed state of the eye position of the eye is always in the eyeball-rotation state of the hyperopic parallel light. More specifically, the technical parameters of the primary lens are the use of a prism dissociation method and targeting at conventional myopia. An adaptive fusion/adaptation ratio is calculated on an additive basis for the patient's inertial refraction. The position on the uncut lens is relative to the geometric center of the uncut lens.
The auxiliary lens of the embodiment is configured according to the parameters of the near vision position, so that the relaxed state of the eye position of the eye always adopts the eyeball rotation state of the far vision parallel light.
The power rating of the spectacles of the present embodiment is preferably within +0.75D to +1.50D diopters with a deviation of + -0.12D, and is configured according to the meridian shift parameters of the myopia position.
The shape of the auxiliary lens of the embodiment is circular, the central power is diopter + 0.75D- +1.50D, the diopter decreases outwards along concentric circles, the central range is diameter 25 mm, the decreasing range is elliptical, the diameter is increased in a wide and narrow equal ratio, the maximum to elliptical width and the maximum to elliptical width are respectively 50 mm and 30 mm, so that the relaxed state of the eye position of the eyes is always the eyeball rotation state of far-sighted parallel light, and any relief to the adjustment requirement is provided in the myopia task viewed through the auxiliary lens.
By a plurality of focal lenses having a continuous curvature and by varying the refractive index of the lenses to achieve increased power for far and near vision. The property of the refractive index superimposed on the interface of the different refractive index portions results in a lens that provides better vision and blending area, is very narrow in vertical extent or height, and is practically insignificant. The lens employs a multi-layer refractive index variation including a multi-layer lens. Similar to bifocal, trifocal, or other multi-focal lenses, have a substantially constant refractive index from one surface of the layer to the other. Thus, the power required at any point on the lens is immediately and constantly acting through the constantly changing refractive index layer, so that the lens can be produced with a minimum center and edge thickness.
Specifically, taking reading as an example: as shown in fig. 4, the book of the near-square object adopts the interval of 87 mm as the distance for binocular correction, the habitual myopia distance is 20 cm, the lens power is +5.00D, and the adjusting power is 0. To counteract the excessive convergence of 4p.d. due to close-range perception, it can be made with a pupil distance of 95 mm. The book can be viewed directly by eyes and the object book can be viewed in a real space.
The product is mainly characterized in that the bifocal lens comprises two different prescriptions: one for near work, such as reading, and the other for distance viewing. These lenses are typically used for people who begin to have presbyopia above age 40 who cannot see clearly at all distances at the same lens power. The myopia pressure reduction auxiliary tool glasses provide the convenience that two pairs of glasses do not need to be carried with a person. Other situations where myopic pressure reduction aid lenses are used include binocular visual impairment and visual problems associated with desk or computer work. Excessive near work may also be associated with increased myopia. And may help limit the occurrence or progression of myopia. The myopia pressure reducing auxiliary tool glasses can be used continuously or in a limited time, and when the purpose is achieved, the glasses can not be used any more. The wearing of the myopia pressure reduction aid glasses does not produce dependence on these users.
More specifically: as shown in fig. 5 and 6, the main lens and the auxiliary lens of the present embodiment extend outward from the center to the periphery of the lens. The center of the primary lens extends outward to the periphery of the primary lens, and the secondary lens is connected to the outer periphery of the primary lens by a blending zone of the secondary lens. The secondary lens extends outwardly from the outer periphery of the primary lens to the outer periphery of the primary lens. The lens has a power profile defined by a complex mathematical function.
The present embodiment selects a first mathematical function for defining a first portion of the power profile of the lens, selects a second mathematical function for defining a second portion of the power profile of the lens, and combines the first and second mathematical functions to generate a composite function.
FT＝F1+F2
As shown in fig. 7 and 8, the "spherical refractive power" of the attached lens of the present embodiment, also called total power or refractive power or focusing power or spherical power, for the incident light beam passing through the lens is a quantity characterizing and quantifying the first spherical refractive effect ("magnifying lens" effect) of the lens for the radius under consideration: if positive, the lens has a converging effect on the radius; if negative, the effect on the radius is diverging.
The "cylindrical refractive power" of the on-lens of this embodiment for the incident ray passing through the lens is a quantity that characterizes and quantifies the cylindrical refractive effect that the lens exerts on the ray in question, and therefore forms not one but two focal length regions, which lie in different planes, are generally perpendicular to each other, and are called the tangential focal length and the sagittal focal length. This cylindrical power, also called "astigmatic power" or simply "astigmatism", corresponds to the difference between the spherical powers of the two focal zones.
As shown in fig. 9, the "power" of the lens-on-lens of this embodiment for the incident light rays passing through the lens is a quantity characterizing and quantifying the displacement refraction or more simply deflection effect exerted by the lens on the light rays under consideration. Corresponding to the deflection angle of the ray, i.e. the angle formed between the entry and exit portions of the ray. One horizontal and the other vertical, which corresponds to the deflection of the beam at near vision distances.
As shown in fig. 10 and 11, the present embodiment can be adjusted according to the myopia status of the individual according to the inspection data, and is not a conventional fixing method.
These and other features and advantages of the present product will be apparent from the foregoing description. Generally, the wearer does not need to perform any prismatic correction on the lens except for the special case of prescribed prismatic correction (e.g., strabismus).
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a myopia decompression appurtenance mirror, includes the lens of mirror holder and adaptation, its characterized in that: the lens is composed of a main lens and an auxiliary lens, wherein the main lens is a concave lens, the auxiliary lens is attached to the front surface or the back surface of the main lens, and the auxiliary lens is composed of a convex spherical lens with different diopters from the main lens.
2. A myopic pressure reduction aid spectacle lens as claimed in claim 1, wherein: the primary lens is configured according to a distance vision eye position parameter.
3. A myopic decompression aid lens according to claim 1 or 2, wherein: the auxiliary lens is configured according to the myopic eye position parameters.
4. A myopic pressure reduction aid spectacle lens as claimed in claim 3, wherein: the prescribed power of the auxiliary lens is within diopter +0.75D to +1.50D and deviation +/-0.12D, and the prescribed power is configured according to the meridian displacement parameter of the myopia position.
5. A myopic pressure reduction aid spectacle lens as claimed in claim 3, wherein: the auxiliary lens is circular, the central diopter is from +0.75D to +1.50D, the central diopter is downward reduced by the arc fit, and the central range is 25 mm in diameter.
6. A myopic pressure reduction aid spectacle according to claim 5, wherein: the decreasing range is ellipse, the diameter width and the diameter width are increased in an equal ratio, the maximum width and the maximum width of the ellipse are respectively 50 mm and 30 mm, the decreasing diopter is selected to be 0.125D or 0.25D, and the number of layers is selected to be 3-8.
7. A myopic pressure reduction aid spectacle according to claim 4, wherein: the eye position displacement parameter of the auxiliary lens takes the corresponding part of the myopia pupil as a standard, and the deviation of the meridian displacement direction orientation ear side is less than or equal to 0.5 mm.
8. A myopic pressure reduction aid spectacle lens as claimed in claim 1, wherein: the center of the primary lens extends outward to the periphery of the primary lens, the secondary lens is connected to the outer periphery of the primary lens through a mixing zone of the secondary lens, and the secondary lens extends outward from the outer periphery of the primary lens to the outer periphery of the primary lens.
9. A myopic pressure reduction aid spectacle lens as claimed in claim 1, wherein: the lens is an optical glass lens or an optical plastic lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120781594.XU CN214375639U (en) | 2021-04-14 | 2021-04-14 | Myopia decompression appurtenance mirror |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120781594.XU CN214375639U (en) | 2021-04-14 | 2021-04-14 | Myopia decompression appurtenance mirror |
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| Publication Number | Publication Date |
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| CN214375639U true CN214375639U (en) | 2021-10-08 |
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|---|---|---|---|
| CN202120781594.XU Expired - Fee Related CN214375639U (en) | 2021-04-14 | 2021-04-14 | Myopia decompression appurtenance mirror |
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| Country | Link |
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2021
- 2021-04-14 CN CN202120781594.XU patent/CN214375639U/en not_active Expired - Fee Related
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