视力表照明现状调查及分析  

The investigation and analysis of visual acuity test chart illumination

作　　者：曹际新[1] 朱风云[1] 杨敬昌[1] 张新晨[1] 

机构地区：[1]山东省泰安市中心医院眼科

出　　处：《眼科》1999年第2期105-106,共2页Ophthalmology in China

摘　　要：通过对山东省泰安市各级医院及眼镜营销单位视力表照度的调查，了解视力表照明的现状。使用照度仪在视力表的八个方位测量。计算平均照度及均匀度。结果表明视力表照度不统一，同一视力表照度不均匀的现象普遍存在。To understand the present situation of visual acuity test chart illumination,visual acuity test chart illumination in the hospitals and glasses shops at different levels of Taian city of Shandong province was investigated The measured illumination was at 8 orientations of visual acuity test chart with illuminometer and the mean illumination and uniformity were calculated It was found that the illuminations of many visual acuity test charts which we had measured were not unified and lack of uniformity The producers of visual acuity test chart should pay much more attention to the results we have got

关 键 词：视敏度 视力测定法 光度测定 

分 类 号：R770.421[医药卫生—眼科]