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多少度算是真近视

更新时间: 2020-11-05 00:00:00     

200度以上算是真近视。一般情况下200度以下是不需要戴眼镜的。近视,是眼在调节松弛状态下,平行光线经眼的屈光系统的折射后焦点落在视网膜之前。古代医籍对本病早有认识,称为目不能远视,又名能近怯远症,至《目经大成》始称近视。由先天生成,近视程度较高者又称近觑。近视的发生与遗传、发育、环境等诸多因素有关。

关键词: 多少 算是 近视

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