Vision measurement table

Abstract

The invention discloses a vision measurement table, which comprises a box body and a vision testing chart, wherein the box body is of a rectangular structure; the box body is about 5cm thick; a lighting source is arranged in the box body; the vision testing chart is arranged on the surface of the box body; and the vision testing chart has 14 rows of sighting targets in all, wherein 9 sighting targets are respectively arranged in each row from the first row to the 11th row, 7 sighting targets are arranged on the 12th row, 3 sighting targets are arranged on the 13th row, 1 sighting target is arranged on the 14th row, the sighting targets of all rows are symmetrically and regularly arranged up and down, and all the sighting targets are stereoscopically and uniformly distributed from big to small. Due to adoption of the embodiment of the invention, the vision testing charge which is more accurate to detect, wider to apply, more scientific to design and more accordant with human vision physiological reaction can be obtained.

Description

technical field [0001] The invention relates to a visual acuity measurement table. Background technique [0002] The visual acuity measurement chart is a standard tool used to detect the degree of people's vision. The visual targets of the existing visual acuity measurement charts are generally in a flat design, and the visual targets below 0.3 are too few, which are easy to be remembered by the tester, resulting in poor detection methods. Science, difficult to judge, inaccurate test results. Contents of the invention [0003] In view of this, the object of the present invention is to provide a visual acuity measurement table with a more scientific design. [0004] In order to achieve the above object, the technical scheme of a visual acuity meter of the present invention is: comprising a box body and a visual acuity chart, the box body is a cuboid structure, the thickness of the box body is about 5 centimeters, an illumination light source is arranged in the box body, an...

AI Technical Summary

Problems solved by technology

[0002] The visual acuity measurement table is a standard tool used to detect the degree of people's vision. The visual targets of the existing visual acuity measurement table are generally in a flat design, and there are too few visual targets below 0.3, which are easy to be remembered by the tester, resulting in poor detection methods. Scientific, difficult to judge, inaccurate test results

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