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Adjustment of subjective and objective refractions

A technology of refractive power and visual impairment, applied in the field of spectacle lenses or spectacle lens series, which can solve different problems

Active Publication Date: 2020-11-10
罗登斯托克有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Often, however, the values ​​determined using objective refraction for spectacle wearers differ significantly from values ​​determined using subjective refraction

Method used

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  • Adjustment of subjective and objective refractions
  • Adjustment of subjective and objective refractions
  • Adjustment of subjective and objective refractions

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0347] -ΔM -2 =ΔM +2 = 1, 0Dpt

[0348] -ΔM -1 =ΔM +1 =0,5Dpt

[0349] Akk 1 = 0 Dpt

[0350] Akk 2 =1,75Dpt

[0351]

[0352]

[0353]

[0354]

[0355]

[0356]

example 2

[0358] -ΔM -2 =ΔM +2 = 0 Dpt

[0359] -ΔM -1 =ΔM +1 = 0 Dpt

[0360] Akk 1 = 0 Dpt

[0361] Akk 2 =1,75Dpt

[0362]

[0363]

[0364]

[0365]

[0366]

[0367]

example 3

[0369] -ΔM -2 =ΔM +2 = 1,5Dpt

[0370] -ΔM -1 =ΔM +1 =0,75Dpt

[0371] Akk 1 =0,5Dpt

[0372] Akk 2 = 2,0 Dpt

[0373]

[0374]

[0375]

[0376]

[0377]

[0378]

[0379] image 3 shows the weighting of the subjective spherical equivalent according to Example 1 Figure 4A shows the weighting of the subjective spherical equivalent according to Example 2 Figure 4C shows the weighting of the subjective spherical equivalent according to Example 3 In terms of reducing statistical measurement errors in subjective and / or objective measurements, image 3 The weight ratio shown Figure 4A The weights shown are more favorable.

[0380] According to example 1 ( image 3 ), Example 2 ( Figure 4A ) and Example 3 ( Figure 4B ) depends on the difference (or difference) between the downlight and the spherical equivalent corrected in step 1 ΔM=M sub -M obj . As mentioned above, the function consists of a number of plateaus of constant weight, betwee...

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Abstract

The present invention relates to a method for determining the defective vision of an eye of a spectacle wearer, corresponding computer program products, spectacle glass production methods and devices.The invention further relates to a spectacle glass or a spectacle glass series. The method for determining the defective vision of an eye of a spectacle wearer comprises: providing measured values from a first and a second measurement of the defective vision of the eye of the spectacle wearer; and calculating an estimated value for the defective vision of the eye of the spectacle wearer on the basis of the measured values from the first and the second measurement, measurement inaccuracies from the first and the second measurements of the defective vision being taken into account in the calculation of the estimated value of the defective vision.

Description

technical field [0001] The invention relates to a method for determining a visual impairment of a spectacle wearer, a corresponding computer program product, a method and a device for the manufacture of spectacle lenses. The invention also relates to a spectacle lens or a series of spectacle lenses. Background technique [0002] A widely used method for determining refraction (comprising at least one refractive component) is the so-called subjective refraction determination, which is already generally accepted by opticians. In subjective refractive determination, different refractive lenses are usually presented to the wearer of the spectacle lens, wherein the wearer of the spectacle lens notifies the optometrist of an improvement or worsening of the visual impression when the optical properties of the presented refractive lens change . Thus, subjective refraction requires information from the subject about the visual impression and can also take into account the influence...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/02
CPCG02C7/027G02C2202/22A61B3/103G06N7/00A61B3/0025A61B3/028G16H50/30G16H50/20G16H50/70
Inventor A·穆席洛克H·阿尔特海默W·贝肯G·艾瑟D·乌腾韦勒
Owner 罗登斯托克有限责任公司
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