Snellen test
/ˈsnelən/noun
- an eyesight test using rows of letters printed in successively decreasing sizes (the Snellen scale) of which patients are asked to read as many as they can斯内伦视力测试(视力测验的一种, 受试者尽量读出由大到小排列 [斯内伦标准]的字母)。
词源
mid 19th cent.: named after Hermann Snellen (1834-1908), Dutch ophthalmologist.