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Visual function test method based on shielding glasses

A technology for functional testing and glasses, which is applied in the direction of educational appliances, instruments, teaching aids, etc., can solve problems such as the inability to simulate the filtering effect of light with specific wavelengths, the inability to quantify the degree of shading, and the inability to accurately control vision conditions, etc., to achieve controllability and Predictable, wide-ranging effects

Active Publication Date: 2015-12-09
PEKING UNIV THIRD HOSPITAL
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  • Abstract
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AI Technical Summary

Problems solved by technology

Existing shading glasses for simulating the state of visual impairment caused by age-related cataract, the simulation method is to simulate the uniform shading effect of the aging lens on light of various wavelengths through milky white translucent shading lenses, which cannot simulate the filtering effect of the aging lens on light of specific wavelengths , and the degree of shading cannot be quantified, and it is impossible to accurately control the vision of the subjects after wearing such shading glasses

Method used

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  • Visual function test method based on shielding glasses
  • Visual function test method based on shielding glasses
  • Visual function test method based on shielding glasses

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with the accompanying drawings. However, it should be understood that the accompanying drawings are provided only for better understanding of the present invention, and they should not be construed as limiting the present invention.

[0015] Such as figure 1 As shown, the shielding glasses for visual function test provided by the present invention include a spectacle frame 1, two filter assemblies 2 and two covering films 3, and each lens inlay area of ​​the spectacle frame 1 is respectively embedded and fixed with a lens inlay. The optical filter assemblies 2 with matching areas, the inner surface of each optical filter assembly 2 is pasted with a covering film 3 for having the same shielding effect on light of each wavelength, wherein each optical filter assembly 2 is based on The light transmittance curve of the human eye lens of a specific age group in the wavelength range of 380-750nm is made, ...

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Abstract

The present invention relates to a visual function test method based on shielding a glasses. The method is characterized by comprising the following steps of 1) manufacturing the corresponding light filter assemblies; 2) selecting the corresponding shielding pad pasting, wherein the amblyopia depression membranes of a vision grade are selected as the shielding pad pasting; 3) selecting a glasses frame, and determining the concrete sizes of the eyeglass embedment areas of the glasses frame; 4) cutting the sizes of the light filter assemblies to match the eyeglass embedment areas, and tailoring the sizes of the amblyopia depression membranes to be consistent with the sizes of the cut light filter assemblies; 5) embedding and fixing the two light filter assemblies in the eyeglass embedment areas respectively, and pasting a smooth surface of each amblyopia depression membrane and the inner surface of the corresponding light filter assembly as one to manufacture and form the shielding glasses; 6) wearing the manufactured shielding glasses over the eyes of a healthy young volunteer, simulating the function test of a vision disorder state caused by the age-related cataract to the healthy young volunteer, and providing the possible measures for improving the life capability to the old people of specific age according to a test result.

Description

technical field [0001] The invention relates to a visual function test method, in particular to a visual function test method based on shading glasses that can be used in healthy young volunteers to simulate the state of visual impairment caused by age-related cataract. Background technique [0002] Age-related cataract is the most common senile eye disease, and its main morphological changes are yellowing of lens color caused by increased lens nucleus density and cortical opacity caused by increased insoluble protein content in the lens. The color change of the lens increases the filtering rate of part of the visible light, and the opacity of the cortex causes the lens to uniformly block visible light. Different stages of the disease will lead to different degrees of visual dysfunction, thereby reducing the ability of daily life of the elderly. It is necessary to evaluate the degree of lens opacity on the basis of the initial judgment of the degree of impact of lens opacity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B19/00
Inventor 敖明昕王薇王旻舒
Owner PEKING UNIV THIRD HOSPITAL
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