推荐回答(5个)
需要正确佩戴,佩戴不正确会伤眼,注意事项:
1、保证三原则。张健建议,无论使用何种功能的眼镜都需要满足三个原则:看得更清楚,看得更持久,用得更舒服。
2、必须选择合格产品。防蓝光镜片分两类,一类是基片着色的浅橙色镜片,底色较深,不适宜长时间佩戴;另一类是通过表面膜层实现防蓝光,底色较浅。从效果来看,这两类镜片的防蓝光效果差异不大。后者的技术更先进,光学表现更优越。需要注意,必须选购合格的光学镜片,并且具有一定的防蓝光效果。
3、并非人人适用。张健表示,防蓝光眼镜只适用于长时间使用电子产品的人,不适用于视疲劳者。青少年儿童也不应长时间佩戴,这类眼镜会形成高阻断蓝光,易造成色偏、加重视疲劳。家长也不能把防蓝光眼镜当作“护身符”,如果孩子长时期佩戴却不节制用眼,对眼睛伤害更大。

扩展资料:
蓝光是可见光的重要组成部分,自然界本身没有单独的白光,蓝光与绿光、红光混合才呈现出白光。短波蓝光是波长处于400~480纳米之间、具有相对较高能量的光线,该波长内的蓝光会使眼睛内的黄斑区毒素增多,导致黄斑病变。蓝光大量存在于电脑显示器、荧光灯、手机等光线中。专用防蓝光眼镜能隔离紫外线与辐射,而且能过滤蓝光,适合看电脑或电视时使用。对于长时间使用电子产品的人来说,防蓝光眼镜确实可以阻挡部分有害蓝光对眼睛的伤害。
参考资料来源:人民网-防蓝光眼镜不宜长时间戴
好的防蓝光眼镜应该都是保护眼睛的,如果说防蓝光眼镜有危害,那么有可能是因为佩戴不适引起的。
防蓝光镜片一般有两种:
1、日常通用型的,蓝光的阻隔率在20%左右,也就是说能阻隔20%的蓝光进入眼睛,减少蓝光对眼睛的危害。虽然因为防蓝光的因素,会让镜片看起来略微有点偏黄,这种镜片可以在使用电脑、电视、手机等设备时使用,也可以在日常中使用。

2、防蓝光PRO版,也就是防蓝光升级版,更多的是防蓝光阻隔率的提升,可以阻挡40%的蓝光进入人眼。这种镜片就比较适合长期使用电脑、电视、手机等人群了,但是因为蓝光的阻隔率越高,镜片底色会越偏黄,在日常使用时,会感觉看东西的亮度有所下降,反而让人视物时觉得眼睛容易疲劳等,这可能就是你说的危害。

另外一个可能危害是,建议对颜色要求苛刻的人,例如平面设计师,慎用防蓝光镜片,因为可能造成画面偏色。
所以,好的防蓝光镜片不存在什么大的危害,更多是使用不当造成的危害。
当然对眼睛有好处,
短波蓝光具有极高能量,能够穿透晶状体直达视网膜。蓝光照射视网膜会产生自由基,而这些自由基会导致视网膜色素上皮细胞衰亡,上皮细胞的衰亡会导致光敏感细胞缺少养分从而引起视力损伤,而且这些损伤是不可逆的。
防蓝光眼镜能有效减少蓝光对眼睛的持续伤害,通过便携式光谱分析仪对比检测,使用防蓝光眼镜后,手机屏幕发出的蓝光强度得到了有效抑制,减少了有害蓝光对眼睛的伤害。
这要看你选择的防蓝光眼镜是否正规,以前防蓝光是对所有的蓝光进行拦截,现在经过更新换代技术改进后只防 三百八十频左右的有害蓝光,所以说,不必担心!
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