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。
Optics and optical instruments. visual acuity testing. method of correlating optotypes.
光学和光学仪器。视觉敏锐度测试。相关的验光字体法。
Efficacy assessments included several visual function parameters including best-corrected visual acuity and visual field testing.
疗效评估包括几个视觉包括最佳矫正视力及视野测试函数的参数。
Efficacy assessments included several visual function parameters including best-corrected visual acuity and visual field testing.
疗效评估包括几个视觉包括最佳矫正视力及视野测试函数的参数。
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