将新的设计原则应用于文盲用E图表的构建。

Am J Optom Physiol Opt. 1978 May;55(5):348-51. doi: 10.1097/00006324-197805000-00008.

New design principles have been applied to the construction of an illiterate E chart. A chart can thus be produced in which the only variable in the visual acuity task for letters of different size is the letter size itself. A simple method for using this chart in field studies is described.

新的设计原则已应用于文盲用E视力表的构建。这样就能制作出一种视力表，其中不同大小字母的视力测试中唯一的变量就是字母大小本身。本文描述了一种在现场研究中使用这种视力表的简单方法。