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156镜片要多少度
更新时间: 2020-11-05 00:00:00  

1、56镜片要200度。属于轻度近视范围,佩戴凹透镜就可以解决。

近视眼(myopia)也称短视眼,因为这种眼只能看近而视远不清。处在休息状态时,从无限远处来的平行光,经过眼的屈光系统折光后在视网膜之前集合成焦点,在视网膜上则形成不清楚的像。

关键词: 镜片 多少

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