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视力低于多少为盲

更新时间: 2020-11-05 00:00:00     

视力低于0.1为盲,正常人的周围视力范围相当大,两侧达90度,上方为60度,下方为75度。近视、夜盲患者的周围视力比较差,一些眼底病也可致周围视力丧失。通常只是检查中心视力,但在医学上,只有当中心视力、周围视力和立体视力都符合生理要求时,才能算作视力正常。

关键词: 视力 低于 多少

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