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带近视镜的视力是多少

更新时间: 2020-11-04 00:00:00     

近视是屈光不正,是指外界的平行光线经过眼睛屈光系统后成像在视网膜之前。而视力是指黄斑中心凹的视觉反应,是眼睛对视力表的主观印象。临床上,患者要进行验光,根据屈光度来判断屈光状态,确定近视与否。一般来说,高于-0.25D的屈光度叫做近视。

关键词: 近视 视力 多少

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