an uncorrected visual acuity of at least 20/40 (6/12) with both eyes open. " j2 R# J7 A, l3 t3 A+ v / `; [; }3 ]# P& W4 Pvisual aids (glasses or contact lenses) must have vision of 20:20 (6:6) with both eyes open. 9 S9 K1 h+ k8 u/ z. \; J% u; Z, M: n8 q$ v4 x9 b& g# l
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。) E# F' D+ ?$ j5 I$ G
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)。 7 e: A& x% c$ n2 X2 `6 |3 vvisual 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。