an uncorrected visual acuity of at least 20/40 (6/12) with both eyes open. $ I8 n+ ^, h$ b* e 3 ]/ G( ?! a7 @% a4 ~, Z+ Cvisual aids (glasses or contact lenses) must have vision of 20:20 (6:6) with both eyes open. ) _+ k3 n2 Z/ B l; b0 A
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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。" V' F, L% n 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)。 ) _# \' ^2 @& ovisual 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。