Method for optimizing optical aids by automatically determining subjective visual acuity

A technology for automatic determination and visual acuity, applied in the direction of optical components, non-optical accessories, neural learning methods, etc., can solve problems such as laborious optical aids, inaccurate destructive effects, and inability to guarantee sufficiently accurate results

Active Publication Date: 2022-07-08
CARL ZEISS VISION INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, using these known methods cannot guarantee sufficiently accurate results
Correspondingly, the optimization of optical aids by known methods for determining subjective visual acuity is laborious, susceptible to damaging effects and not accurate enough

Method used

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  • Method for optimizing optical aids by automatically determining subjective visual acuity
  • Method for optimizing optical aids by automatically determining subjective visual acuity
  • Method for optimizing optical aids by automatically determining subjective visual acuity

Examples

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Embodiment Construction

[0114] figure 1 A flow chart showing a sequence of an exemplary embodiment of a method of optimizing an optical aid by automatically determining subjective visual acuity according to the present invention. In this case, the optical aids are optimized specifically for the human eye. Optical aids are, for example, spectacle lenses.

[0115] In step S1, a training data set is provided. The provided training dataset reflects the subjective visual acuity of a large number of real test subjects in recognizing stimulus images.

[0116] For example, real test subjects were presented with a Landau ring (or "Landau C") as a stimulus image on a monitor multiple times separately. In each case, presentations were performed under standardized conditions; in particular, the distance between the monitor and the test subject was fixed. In this case, the gap of the Landau ring can have the following eight possible alignment angles, specifically "0°", "45°", "90°", "135°", "180°", "225°", "...

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Abstract

The invention relates to: a method for optimizing optical aids by automatically measuring subjective visual acuity; a method for producing correspondingly optimized optical aids; a device for producing optical aids; a A computer program having program code for executing the optimization method, the program being executable on a processor; and a non-transitory storage medium including the computer program stored thereon.

Description

technical field [0001] The present invention relates to a method for optimizing optical aids by automatically determining subjective visual acuity. Background technique [0002] Known methods for determining subjective visual acuity (eg, the resolution of the human eye) are based on the assumption that there is a link between optical defects and expected visual acuity. These known methods model the visual system through various optical and neural filter functions. This modeling is based on subjective measurements of test subjects. Subjective subjective measurements are laborious and result in skewed results due to disruptive effects (eg, due to test subject fatigue). Furthermore, the filter function has adjustable weights that must be adapted appropriately. In particular, neural transfer functions can be highly nonlinear and thus difficult to describe. The neural transfer function can vary greatly from person to person. Therefore, using these known methods cannot guaran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/02A61B3/00G02C7/02G06N20/00
CPCG02C7/027G02C7/028G02C11/10G06N3/08A61B3/0025A61B3/02G06N3/045A61B3/032G06F30/27
Inventor A·勒贝C·莱比格A·奥伦多夫S·瓦尔
Owner CARL ZEISS VISION INT GMBH
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