天气预报 > 其他 > 眼睛视力正常的是多少度
眼睛视力正常的是多少度
更新时间: 2020-11-05 00:00:00  

眼睛视力正常的是0度,一旦超过零度,就是近视眼的范围,代表眼睛近视。

近视,中医病名。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,但确切的发病机理仍在研究中。

关键词: 眼睛 视力 正常 多少

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