an uncorrected visual acuity of at least 20/40 (6/12) with both eyes open. ) N5 D N# s8 s% p% U 3 ~9 t) T! Y r. q! a# _! l# Ivisual aids (glasses or contact lenses) must have vision of 20:20 (6:6) with both eyes open. $ X0 }# H9 }8 @
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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。) w0 y: b+ _: z6 s+ o5 }; i: @# Y
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)。1 `% I) S( N0 s+ k7 V
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 1 R/ k% {( ~& {0 W E & h. y9 @0 ~9 s) ?$ l# d 你的视力is 20/200 (20 means from 20 ft.) 如果能看清最下行最小的% G" Y, m3 y0 r8 x6 ]
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