an uncorrected visual acuity of at least 20/40 (6/12) with both eyes open. $ z1 U- c3 K7 b3 R. z+ M6 V2 |
$ w4 y. Y+ i* e: evisual aids (glasses or contact lenses) must have vision of 20:20 (6:6) with both eyes open. 3 s# Y. }2 c+ }+ }, Y3 Z+ S* P- E* j : u7 y1 S2 s7 b q" n! V9 }重要的是专业问题:20/40是什么意思?校正后双眼视力20/20(6:6)是什么意思?
我试试啊,不好或不对请谅解,因为我不是近视,没有看过眼医。3 B4 l& O& M0 B6 s* f: F+ o
an uncorrected visual acuity of at least 20/40 (6/12) with both eyes open. 两眼睁开时,未矫正的双眼视敏度至少是20/40(6/12)。* Z$ i* u& I! Q( O2 B# n- w: e* F
visual aids (glasses or contact lenses) must have vision of 20:20 (6:6) with both eyes open.在有视力辅助(如眼镜或隐形眼镜)的情况下,双眼睁开时,视敏度可为20:20(6:6),相应增强。
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我过去常检查眼睛。从20 ft (6 米) 远,如果只能看清top最大的7 \# p' C# H2 i8 _5 z; x( c
E 5 m+ a6 Q5 B3 v- R" D1 Z1 e 你的视力is 20/200 (20 means from 20 ft.) 如果能看清最下行最小的0 s- x% h& }' U1 L. b
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