摘要
本文报告我国3-70岁正常人四项立体视觉阈值的统计分析,立体视锐度93.15％的人通过60s,立体盲的发病率为2.69％;交叉视差92.43％的人通过100min;非交叉视差92.35％的人通过100min;立体视锐度响应时间98.37％的人在2min以内通过。立体视觉是一项系统试验,必须同时进行四项阈值测定。立体视觉检查分远距离与近距离二种,两种方法的结果如同远近视力表检查,并不完全一致,出现交叉阳性反应,故远近距离法应结合使用。
This paper deals with the statistical analysis of the four stereoscopic vision theresholds in normal subjects with an age range from 3 to 70 years old. People with stereoacuity of less than 60s constituted 93.15% of the total population surveyed. The incidence of stereobland accounted for 2.69%; People with crossed disparity of more than 100min and those with uncrossed disparity of more than 100m accounted for 92.43% and 92.35% respectively; And people with stereoacuity response time of 2min accounted for 98.37%。 Stereoscopic vision test is an assay technique, with which the 4 thresholds must be measured simultaneously。 It was divided into 2 types, one the long-range test and the other short-range test。 The results obtained by using these 2 methods were not completely identical, as was the case for the long-range and short-range visual charts。 Therefore, these 2 test methods should be used together to get ideal results。
出处
《海军医学杂志》
1991年第4期300-303,共4页
Journal of Navy Medicine
关键词
立体视锐度
交叉视差
非交叉视差
响应速度
stereoacuity
crossed disparity
uncrossed disparity
stereoacuity response time
