Objective: To provide a visual acuity chart for Chinese low vision patients.
目的：研制一种适合我国眼科临床使用的低视力对数视力表。
The standard logarithm visual acuity chart is applicable to general physical examination, enrollment and recruitment and it can also be referred to in clinical research.
标准的视力表箱适用于一般体检，招生、招工等视力测定，临床方面也可参照使用。
Visual acuity - As part of the testing, you'll be asked to read letters on a distance chart. This test measures visual acuity, which is written as a fraction such as 20/40.
视觉灵敏度检测——作为视力检测的组成部分，你需要读出视力表上的字母以测出你的视觉灵敏度，它可以写成分数的形式，比如20/40。
Sharpness of vision, especially as tested with a Snellen chart. Normal visual acuity based on the Snellen chart is 20/20.
视觉的敏锐程度，尤指经斯纳仑氏图表所测结果。在斯纳仑氏图表上测得的一般的视觉敏锐度为20/20。
Improvement of visual acuity of one grade or more or increase of 0.1 by acuity chart, and improvement of visual field were defined as effective.
提高一个级别或者视力表检查提高0 1为有效，视野缺损的改善也为有效。
That is right, please look at the visual-chart, let us check the visual-acuity again.
好的，请看视力表，让我们再查一次双眼视力。
Objective to develop a kind of intelligent visual acuity test chart for the subject to test their visual acuity by themselves.
目的研制一种智能视力表，实现被检测者自助检测视力。
Objective to develop a kind of intelligent visual acuity test chart for the subject to test their visual acuity by themselves.
目的研制一种智能视力表，实现被检测者自助检测视力。
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