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Optical focusing regulating lens and optical focusing regulating method

An optical focusing and lens technology, applied in optics, optical components, glasses/goggles, etc., can solve the problems of "peripheral defocus control" lenses that cannot maintain optical performance and ignore regulation

Inactive Publication Date: 2015-07-01
ZHONGSHAN OPHTHALMIC CENT SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The generation of accommodation response and the change of gaze point cause the two to change respectively, and the "peripheral defocus control type" lens cannot maintain the necessary optical performance
Second, it ignores the regulation of the defocus state of the macula and nearby parts of the retina

Method used

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  • Optical focusing regulating lens and optical focusing regulating method
  • Optical focusing regulating lens and optical focusing regulating method
  • Optical focusing regulating lens and optical focusing regulating method

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Embodiment Construction

[0052] For better understanding of the present invention, the present invention will be further described below with reference to the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0053] An optical focus control method, comprising the following steps:

[0054] Step 1. The patient first undergoes a routine ophthalmic refraction examination and wears traditional corrective lenses with full caliber (ie. figure 1 display state) to obtain a traditional correction prescription, the traditional corrective lens 3 adopts a second sphero-cylindrical lens structure. The acquisition of the traditional correction prescription includes the diopter of the second cylindrical lens part, the axial position of the second cylindrical lens and the diopter of the second spherical lens part, and the acquisition method is the existing conventional technology.

[0055] Step 2: Check the retinal defocus state of the user when the user is nearsighted on ...

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Abstract

The invention discloses an optical focusing regulating lens. In a lens-eye optical system formed by wearing the optical focusing regulating lens, an even and uniform myopic out-of-focus cambered surface in front of retina with the refractive power of (+0.8D)-(+1.2D) is formed in the center of the retina of the human eye and + / -30 degree horizontal view regions after rays entering the eye emitted from a near point of a field of view pass through the lens-eye optical system. The invention further discloses an optical focusing regulating method implemented by using the optical focusing regulating lens. According to the invention, the rays entering the eye emitted at the near point of the field of view form the effective and continuous myopic out-of-focus cambered surface in the 30 degree view regions of the retina to cover whole central 30 degree regions inducing the macular area, so that the retina is stimulated by virtue of the myopic out-of-focus cambered surface so as to realize the functions of promoting transfer of a neural signal of the retina and preventing genesis and development of myopia.

Description

technical field [0001] The invention relates to the technical field of myopia correction, in particular to an optical focusing correction lens in the central-peripheral region of the retina of a human eye and an optical focusing control method, so that light entering the human eye from a short distance forms an orderly optical line in front of the central retina to the peripheral region (Myopia) Out-of-focus arc. Background technique [0002] Myopia is one of the most common eye diseases worldwide, and patients are at increased risk of reduced distance vision, retinal detachment, glaucoma and other irreversible blinding eye diseases. One of the hot spots in myopia control research is the theory of retinal defocus. Retinal defocus means that the rays of light that enter the eye are not focused on the retina, but are instead focused in front of or behind the retina. These two defocus states are called myopic defocus and hyperopic defocus, respectively. The study found that ...

Claims

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Application Information

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IPC IPC(8): G02C7/06
CPCG02C7/061
Inventor 陈翔佘志辉乐美华伍卫东
Owner ZHONGSHAN OPHTHALMIC CENT SUN YAT SEN UNIV
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