an uncorrected visual acuity of at least 20/40 (6/12) with both eyes open. 3 Q& {) T$ P" s4 Y. L" @4 ]
1 E2 l+ B0 h+ q3 q- F: o' \visual aids (glasses or contact lenses) must have vision of 20:20 (6:6) with both eyes open. ' G+ [" \! I) g 1 }1 k5 q; h& g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。 4 I% F9 q2 {* T2 R0 C7 o* P$ oan 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)。& D0 |, d# A7 d* b3 \! a# X
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。
" B% D) O# e6 e ; O% {# O/ ~" Q% v" ^' O2 b7 u我过去常检查眼睛。从20 ft (6 米) 远,如果只能看清top最大的5 r) e! D- p" V3 M1 Q
E * N. [" G; u1 {# F' h. C* h, A) D; O 你的视力is 20/200 (20 means from 20 ft.) 如果能看清最下行最小的% a5 @+ P' X: B/ c
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你的视力is 20/20. 也就是1.5。拿到 Diver’s license 的视力要求是 20/40, 也就是校正后的视力能看清from bottom up 第3行,也就是校正视力1.0.