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Orthokeratology lens

A technology of orthokeratology and corneal epithelial cells, which is applied in glasses/goggles, optics, instruments, etc., can solve problems such as easy displacement of orthokeratology lenses, and achieve good central positioning performance

Inactive Publication Date: 2014-02-05
邵海平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention aims to solve the technical problem that the orthokeratology lens is easily displaced, and improve the central positioning function and other related performances of the orthokeratology lens

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] Refer to attached Figure 3-7 :

[0026] In the orthokeratology lens of the present invention, the inner surface of the lens body has a base arc region 10 for shaping the corneal cell layer, and a thickened reflector for storing tears and receiving the corneal epithelial cell layer from the center to the outside. The turning arc area 11, the positioning arc area 12 for lens positioning, and the peripheral arc area 13 are characterized in that: the contour arc of the positioning arc area 12 has a modulated waveform, forming a modulated arc area.

[0027] The modulation waveform is a continuous sine wave, such as Figure 3a .

[0028] Alternatively, the modulation waveform is a continuous waveform whose length of the inward side is greater than that of the outward side, such as Figure 4 .

[0029] Alternatively, the modulation waveform is a discontinuous wave, such as Figure 5 .

[0030] Alternatively, the modulation waveform is a half-wave that only contains a co...

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Abstract

The invention relates to an orthokeratology lens for myopia correction and control, wherein the inner surface is divided into four regions such as a base arc region, a reverse arc region, a modulation arc region and a periphery arc region from the center to the edge, the modulation arc region is a spherical or aspherical arc connected with the reverse arc region and the periphery arc region, and various small width waveform modulations are performed so as to effectively increase a center positioning function of the orthokeratology lens, promote lacrimal fluid exchange, optimize positive pressure of the base arc region, and increase the effective pressure surface of the base arc region.

Description

technical field [0001] The invention relates to an orthokeratology lens. Background technique [0002] Based on genetics and changes in modern lifestyles, myopia has evolved into a serious problem affecting public life. In many countries and regions, including China, the myopia rate among teenagers has reached 80%. Severe myopia deepening can also lead to glaucoma, cataracts, choroidal degeneration, retinal detachment, and even blindness. The eye with normal vision can accurately focus parallel rays of light on the retina. The eyes of myopic patients can only focus parallel light rays in front of the retina due to the long eye axis and / or excessive curvature of the cornea, so that the myopic patients cannot see distant objects clearly. [0003] The following myopia correction technologies refocus the light emitted by distant objects on the retina by correcting refractive errors: The traditional method of vision correction is to wear suitable frames of myopia glasses, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/04A61F9/013
Inventor 邵海平
Owner 邵海平
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