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42相当于多少度近视
更新时间: 2020-11-05 00:00:00  

1、双眼视力4.2,相当于国际小数视力表测定的0.15。按着屈光度的换算公式d=1/f计算,0.15的度数相当于近视度数的600多度,属于高度近视的范畴。由于人类80%的知识都是通过眼睛获得的,所以说保护视力是非常重要的。

2、不要用眼过度疲劳,防止加大度数,同时注意可以多做一些眼保健操,可以缓解眼睛的疲劳,不要经常玩手机,对眼睛也是有伤害的

关键词: 相当 多少 近视

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