an uncorrected visual acuity of at least 20/40 (6/12) with both eyes open. 4 q8 Z! |% x( Z: L1 d; i n
* t6 l; V8 ~. R- pvisual aids (glasses or contact lenses) must have vision of 20:20 (6:6) with both eyes open. 8 {/ ]% i. K/ t6 [$ {; Y% b+ _! Q' W; M1 E5 A
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。. u( @' s% v+ X. L0 Z8 [5 h
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)。# h6 E, ~" {* M! a
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。
( f- v8 @% Q& l我过去常检查眼睛。从20 ft (6 米) 远,如果只能看清top最大的 4 N& [& Y) k4 i9 J E ' d# O* n: f, h* s; Z 你的视力is 20/200 (20 means from 20 ft.) 如果能看清最下行最小的 ' i) O' H5 t b$ u, r1 I1 f 8 x( k2 W6 x* m/ X8 h5 { E V O T Z 4 x- n. X5 k1 X- y$ p5 m6 Q9 C* e9 c) ~( `
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.