an uncorrected visual acuity of at least 20/40 (6/12) with both eyes open. 3 t; Q/ B+ E" y# i+ V9 q8 d9 @0 ~5 L) R3 j
visual aids (glasses or contact lenses) must have vision of 20:20 (6:6) with both eyes open. # T" M/ E* b2 P
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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。; B2 F- Y$ P4 g, V
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)。' ^9 P! u9 B- ~# E
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。