Preparation method of aspheric optical area of orthokeratology lens

A technology of orthokeratology and aspheric surface, applied in optics, optical components, glasses/goggles, etc., can solve the problem of peripheral refractive power control to the extent that orthokeratology cannot be formed, and improve the control of myopia progress and The effect of controlling the theoretical path and preventing the growth of the eye axis

Active Publication Date: 2021-11-19
SHENZHEN NEW IND MATERIAL OF OPHTHALMOLOGYCO
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Problems solved by technology

[0004] The main purpose of the present invention is to propose a method for preparing an aspheric optical zone of an orthokeratology lens, aiming at solving the problem that the existing o

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  • Preparation method of aspheric optical area of orthokeratology lens
  • Preparation method of aspheric optical area of orthokeratology lens
  • Preparation method of aspheric optical area of orthokeratology lens

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Embodiment Construction

[0032] Please refer to figure 1 , figure 1 It is a schematic flowchart of the first embodiment of the method for preparing the aspheric optical zone of the orthokeratology lens of the present invention.

[0033] The preparation method of the aspheric optical zone of the orthokeratology lens in this embodiment comprises the following steps:

[0034] Step S100, determining the mathematical model of the human eye, wherein the mathematical model of the human eye includes: cornea, aqueous humor, pupil, lens, vitreous body and retina;

[0035] When starting to prepare the aspheric optical zone of the orthokeratology lens, first determine the mathematical model of the human eye including: cornea, aqueous humor, pupil, lens, vitreous body and retina.

[0036] It should be noted that, in this embodiment, the parameters of the human eye are measured according to the requirements of a predetermined mathematical model of the human eye. The mathematical model of the human eye may specifi...

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Abstract

The invention relates to the technical field of orthokeratology, and discloses a preparation method of an aspheric optical zone of an orthokeratology lens. The method comprises the steps of: determining a human eye mathematical model which comprises a cornea, aqueous humor, a pupil, a crystalline lens, a vitreous body and a retina; performing optical simulation according to the human eye mathematical model and basic simulation parameters; and preparing the aspheric optical area of the orthokeratology lens based on a simulation result of optical simulation. The method for designing the aspheric optical zone of the orthokeratology lens is controllable, clear in theoretical path and guided by practical indexes, the human eyes are adjusted and corrected to be stable and controllable myopia defocus on the premise that the visual quality is guaranteed during use, the effect of preventing the eye axes of the human eyes from increasing is expected to be achieved, and therefore, the function of controlling the myopia progress of the human eyes is improved.

Description

technical field [0001] The invention relates to the technical field of orthokeratology lenses, in particular to the preparation of an aspheric optical zone of an orthokeratology lens. Background technique [0002] The concept of peripheral defocus was sorted out and summarized in the actual clinical practice in the field of optometry. Initially, doctors found that the eye axis length and myopia growth rate of some orthokeratology lens wearers were delayed, and then found that peripheral defocus was The role of which forms the theory of peripheral defocus control myopia. However, this theory has been in a state of passive discovery, and there is no product design method with a clear theoretical path and controllable effects. [0003] Therefore, the present invention provides a design method of orthokeratology lenses that is controllable, has a clear theoretical path, and is guided by practical indicators. The effect requires constraints and iterative optimization of paramet...

Claims

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Application Information

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IPC IPC(8): G02C7/04G02C7/02
CPCG02C7/047G02C7/024G02C7/027
Inventor 曹吉
Owner SHENZHEN NEW IND MATERIAL OF OPHTHALMOLOGYCO
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