Sight training chart

A technology of visual training and training tables, applied in the field of visual training tables, can solve problems such as high probability of guessing right, and achieve better results and accurate vision

Inactive Publication Date: 2014-10-08
HANGZHOU LIVENTOP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this kind of visual training table is used, the number of visual targets of large

Method used

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  • Sight training chart
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Embodiment Construction

[0016] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0017] See figure 1 , the present invention discloses a visual training table 100, and the visual training table 100 is distributed centrally and symmetrically. The vision training table 100 with central symmetrical distribution can automatically cause the focus of the optic nerve when testing vision, so that the measured vision is more accurate. At the same time, since the visual training watch 100 is symmetrical in all directions of the circumference, the visual training effect for people with amblyopia, polarized light and ...

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PUM

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Abstract

The invention provides a sight training chart which comprises first sight mark sets and second sight mark sets. The first sight mark sets are annularly distributed and are provided with a first center, and the second sight mark sets are annularly distributed and are provided with a second center, wherein the first center coincides with the second center. The radian of the first sight mark sets is larger than or equal to 90 degrees but smaller than or equal to 270 degrees, and the radian of the second sight mark sets is larger than or equal to 90 degrees but smaller than or equal to 270 degrees. The sight training chart is provided with a center, in the process of sight training and the process of sight detecting, focusing of the optic nerve can be automatically excited, the sight training effect on people who suffer from the amblyopia, the polarization sight and the astigmatism is better, and the measured sight is more accurate.

Description

technical field [0001] The invention relates to a visual training form. Background technique [0002] The logarithmic vision training table used in the prior art is usually a top-to-bottom visual training table with gradually decreasing optotypes. When this kind of visual training form is used, the number of visual targets with a larger size is relatively small, so the probability of the correct guess of the tested person is relatively high. [0003] Therefore, it is necessary to design a vision training table with accurate measurement and better training effect. Contents of the invention [0004] Aiming at the defects existing in the prior art, the present invention provides a visual training form, comprising a first group of visual targets and a second group of visual targets, the first group of visual targets is distributed in a ring shape and has a first center, and the The second optotype group is distributed in a ring shape, has a second center, the first center an...

Claims

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Application Information

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IPC IPC(8): A61H5/00A61B3/032
Inventor 刘康苗吴升瑞柳晓凤
Owner HANGZHOU LIVENTOP TECH
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