Chinese read logarithm vision testing chart and Chinese read ability testing method

Abstract

The invention discloses a Chinese read logarithm vision testing chart and a Chinese read ability testing method. The Chinese read logarithm vision testing chart includes a plurality of lines of optotypes which are centralized and arranged along a longitudinal axis; the optotypes are sentences which are showed in each line; each sentence includes Chinese characters having the same printing size; the number of the optotypes in each line is identical; contents of the sentences of the optotypes in all the lines are different from each other; the size of the optotypes is represented by the height of the Chinese characters in the sentences of the optotypes, and is gradually decreasing from top to bottom; and the optotype size is a logarithm mark. In test, the Chinese read logarithm vision testing chart is drawn, the optotypes are visible for a subject line by line, the reading time and the number of error characters are recorded till the number of recognizable Chinese characters for the subject is equal to 0, and the Chinese character recognition ability of the subject and the reading speed of the subject can be calculated. The Chinese read logarithm vision testing chart and the Chineseread ability testing method can quickly and accurately acquire the Chinese character recognition ability and the reading speed of the subject, and can be applied to research or clinics.

Description

technical field [0001] The present invention relates to eyesight and reading speed detection device and method, relate in particular to a kind of Chinese reading multifunctional eyesight table, Beijing-Minnesota Chinese reading logarithmic eyesight test table (C-READ) and use this Chinese reading logarithmic eyesight test table to test Chinese Methods of testing reading ability. Background technique [0002] At present, the commonly used visual acuity charts for performing visual acuity tests on subjects in clinical and research use "E" or "C" as visual targets (Snellen E, Landolt C, etc.). This kind of visual target has a simple structure and can accurately measure the subject's ability to distinguish simple image details. However, there are following deficiencies in this visual mark structure: [0003] (1) Simple visual targets are difficult to accurately measure the subject's ability to distinguish complex image details. Such as Chinese character recognition, etc. [...

AI Technical Summary

Problems solved by technology

[0004] (2) Since the Chinese characters themselves have different structures and numbers of strokes, using a single Chinese character to test the subject's ability to distinguish complex image details cannot obtain stable results

[0005] Therefore, the existing eye chart is difficult to meet the needs of testing subjects' Chinese character recognition ability and reading speed in clinical and research

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