an uncorrected visual acuity of at least 20/40 (6/12) with both eyes open. 8 D+ x! o0 s5 N
$ K- Z# v1 C* m& P, p; u
visual aids (glasses or contact lenses) must have vision of 20:20 (6:6) with both eyes open. % i r3 ]9 ~7 z# B; Q& r# A6 M- G8 |! {9 S8 }# Q1 c
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。1 y& E& U9 j: \8 ]
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)。 - v" M$ m# a2 D- X0 }. L( V6 qvisual 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。