1. figures or letters of different sizes used in testing the acuity of vision —usually used in plural
optotype 片语
片语
single optotype单视标
optotype slide释义视力测试幻灯片
optotype increment视标增率
Standard optotype and its presentation标準验光字体及其演示
optotype 例句
英汉例句
the character recognition threshold or acuity of chinese characters was measured and compared with english letters and optotype e, by the method of constant stimuli.