Press-on lens capable of correcting retinal peripheral defocus

A lens and pressing technology, which is applied in the field of glasses, can solve problems such as unscientific, slow emmetropization of hyperopic eyeballs, unreasonable design of the peripheral parts of spectacle lenses, etc., and achieve the effect of easy pasting and use

Inactive Publication Date: 2013-07-10
段亚东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The spectacle source factors that lead to the continuous extension of the myopic eyeball or the relatively slow emmetropization of t

Method used

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  • Press-on lens capable of correcting retinal peripheral defocus
  • Press-on lens capable of correcting retinal peripheral defocus
  • Press-on lens capable of correcting retinal peripheral defocus

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0056] Here's how to make this press-fit lens:

[0057] These press-fit lenses are selected from soft clear plastic polymer materials, also known as plastics. Selected from polycarbonate, polyimide, polyethylene, polyvinyl alcohol, polystyrene, polyvinyl chloride, polypropylene, polyurethane, polytetrafluoroethylene, polyhydroxyethyl acrylic methyl ester, polymethacrylic ethyl ester, polymethyl methacrylate, glyceryl methacrylate, monopolymer of methyl cyclohexyl acrylate, acrylamide, polystyrene-methyl methacrylate, propylene-styrene, polyethylene terephthalate One or more of alcohol esters, polyethylene naphthalate, and vinylpyrrolidone are used as the pressing lens material. It is preferably selected from polyvinyl alcohol, polyurethane, and polyvinyl chloride as raw materials. A film-like flexible refractive lens with a thickness of 0.5 mm to 2.0 mm is prepared by centrifugal casting method, cutting grinding method or direct molding method, preferably with a thickness of...

Embodiment 1

[0071] Embodiment 1 (popularizing type I myopia peripheral defocus correction glasses)

[0072] Lens design: The central optical zone of the press-fit lens is prepared into a flat lens or a notched lens, and the peripheral optical zone is +1.00DS, +1.50DS, +2.00DS, +2.50DS, +3.00DS five types of convex lens lenses, the central optics The region is prepared as a circular, oval, badminton, nail-shaped central peripheral bifocal or gradient central peripheral bifocal press-fit lens, which is pasted on the plain lens in the ordinary frame glasses.

[0073] Indications: 6 to 18 years old, one parent has myopia, normal vision, or adolescent myopia.

[0074] Wearing method: Wear it when you are in class or reading a book. The central part of the lens can be used for distance or near vision. When near vision, the peripheral part of the lens can correct peripheral hyperopia and prevent the occurrence of myopia.

Embodiment 2

[0075] Embodiment 2 (popularizing Type II myopia peripheral defocus correction glasses)

[0076] Lens design: the design of the press-fit lens is the same as in embodiment 1, except that the press-fit lens is pasted on the flat lens in the additional frame.

[0077] Indications: It is suitable for young people with myopia and the correction degree of the original glasses does not need to be changed. The additional glasses with a circular, oval, badminton, and nail-shaped central optical zone of the press-fit lens are suitable for the original glasses with a single-light concave lens, and the additional glasses with a badminton-shaped or nail-shaped central optical zone. Those who have glasses with bifocal lenses or progressive multifocal lenses.

[0078] How to wear: Wear the original myopia glasses for daily activities. When attending class or reading a book, install the additional glasses on top of the original glasses.

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Abstract

The invention provides a press-on lens capable of correcting retinal peripheral defocus, which belongs to the field of health care glasses. A conventional frame spectacle lens or press-on lens cannot correct retinal peripheral defocus and promotes degree increase of myopia or delays emmetropization of presbyopia. The press-on lens provided by the invention is adhered onto a frame spectacle lens to correct retinal peripheral defocus; the press-on lens can effectively correct retinal peripheral defocus while correcting retinal central defocus and effectively controls degree increase of myopia and promotes emmetropization of presbyopia. The invention further provides a press-on double optical concave lens, a press-on double optical convex lens and a press-on progressive multi-focus lens; the above-mentioned lenses can be adhered on a plano frame spectacle lens to correct myopia and presbyopia and to mitigate adjustment and convergence of eyes.

Description

technical field [0001] The invention relates to the technical field of eyeglasses, in particular to a press-fit lens pasted on a spectacle lens to correct peripheral defocusing of the retina of myopia or hyperopia. Background technique [0002] The eyeball has an active adjustment process of emmetropization, which depends on the focus growth of the peripheral parts of the retina, especially children and adolescents are more significant to this defocus induction. Those who focus behind the peripheral retina of the eyeball are called peripheral hyperopia defocus, also known as peripheral hyperopia (Peripheral hyperopia). Myopia (Peripheral myopia). Myopia often presents hyperopic defocus around the retina, which induces eyeballs to grow backward and increases the degree of myopia; hyperopia often presents myopic defocus around the retina, delaying the growth of emmetropia. A concave lens moves the focal point backwards, and a convex lens moves the focal point forward. Tradi...

Claims

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Application Information

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IPC IPC(8): G02C7/06G02C7/02G02C7/14
CPCG02C7/086G02C7/14G02C7/06G02C2202/24
Inventor 段亚东
Owner 段亚东
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