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450度近視是多少視力
450度近視是多少視力
更新时间:2024-08-19 02:13:32

  1、近視450度新視力表4.3,舊視力表0.2,已經屬于中度近視了。

  2、近視,中醫病名。是眼在調節松弛狀态下,平行光線經眼的屈光系統的折射後焦點落在視網膜之前。古代醫籍對本病早有認識,稱為目不能遠視,又名能近怯遠症,至《目經大成》始稱近視。由先天生成,近視程度較高者又稱近觑。近視的發生與遺傳、發育、環境等諸多因素有關,但确切的發病機理仍在研究中。

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