论对数视力表与五分记录法  

Discussion on logarithmic visual acuity chart and five grade notation

作　　者：罗文彬[1] 罗又蓉[1] 

机构地区：[1]四川省人民医院眼科,成都610072

出　　处：《中华眼科杂志》2005年第1期6-7,共2页Chinese Journal of Ophthalmology

摘　　要：为探讨对数视力表和5分记录法的科学性,将制作的一个10倍于40分的视标,置于眼前05m处,即为20分(1000′=1667°视角);移至眼前005m处,即为10分(10000′=1667°视角);与用手动记录为20分和光感记录为10分的5分记录法比较更科学,从理论上完善了5分记录的标准视标。由我国创制的对数视力表与5分记录法均具有各自的特点和优点。(中华眼科杂志,2005,4167)To explore the scientific aspect of logarithmic visual acuity chart and five grade notation , a visual test-type ten times large as the test-type of 4.0 grade was put 0.5 m before the eye , if the eye saw it , then the visual acuity was 2.0 grade (visual angle 1000′=16.67°). If moving this test-type to 0.05 m before the eye , 1.0 grade (visual angle 10 000′=166.7°) was obtained . They are more scientific than original records: hand movement for 2.0 grade and light perception for 1.0 grade . These test-type theoretically satisfy the demand of 5 grade notation . Logarithmic visual acuity chart and 5 grade notation is more superior subject created in China .

关 键 词：对数视力表 视标 眼科杂志 记录 制作 优点 手动 科学性 视角 中华 

分 类 号：R77[医药卫生—眼科]