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4岁小孩 正常视力多少
更新时间: 2020-11-04 00:00:00  

4岁儿童的正常视力标准一般在0.7-0.8左右,具体的情况除了裸眼视力以外,还应该进行验光检查。

视力是指视网膜一定距离内眼睛分辨影像的能力,所谓视力是指中心视力而言。眼识别远方物体或目标的能力称为远视力,识别近处细小对象或目标的能力称为近视力。

关键词: 小孩 正常 视力 多少

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