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本文对442名正常儿童5种立体视试验的立体视锐度进行测定,男236人,女206人,年龄6～14岁,我们以60秒角以内为正常。测定结果:Randot Steretests:93.66%的儿童能识别50秒角,Frisby Test:93.67%的儿童能识别55秒角。Wirt Test:90.27%的儿童能识别60秒角;TNO Test:89.82%的儿童能识别60秒角;《立体视觉检查图》:56.11%的儿童能识别60秒角;平均84.70%能识别60秒角。立体视的百分率随年龄增长而逐渐上升。本文还对不同立体视试验的优缺点作了评价。
In this paper, stereoscopic acuity of 442 normal children in 5 kinds of stereopsis was measured. There were 236 males and 206 females, aged 6-14 years. We were normal within 60 seconds. Test results: Randot Steretests: 93.66% of children can recognize 50 seconds, Frisby Test: 93.67% of children can recognize 55 seconds. Wirt Test: 90.27% of children can recognize 60 seconds; TNO Test: 89.82% of children can recognize 60 seconds; “stereo vision test”: 56.11% of children can recognize 60 seconds; an average of 84.70% can identify 60 seconds angle. Stereoscopic percentage increases with age gradually increased. The article also evaluates the advantages and disadvantages of different stereoscopic tests.