ANSI Z80.21:2020现行
Ophthalmics - Instruments - General-Purpose Clinical Visual Acuity Charts
出版：Optical Laboratories Association
专家解读视频
基本信息
标准编号： ANSI Z80.21:2020
标准类别：Standard
出版单位：Optical Laboratories Association
标准页数：0
标准简介
This standard applies to displays of optotypes for all clinical visual acuity measurement systems that use recognition of optotypes and that are designed for general use including optotypes printed on opaque media, those intended for transillumination, electronically generated or projected displays.
本标准替代的旧标准
