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近视725度屈光多少
更新时间: 2020-11-04 00:00:00  

近视725度屈光是5.0。光线由一种介质进入另一种不同折射率的介质时,会发生前进方向的改变,在眼光学中即称“屈光”。眼是人体观察客观事物的感觉器官。外界远、近物体发出或反射出来的光线,不论是平行的还是分散的,均需经过眼的屈光系统屈折后,集合结象于视网膜上。

关键词: 近视 多少

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