Blue light is both good and bad for our eyes. Portion of blue light that emits from the sun at day light is good for our eyes. But the blue light that comes from digital devices and CFLs are very hardful for the retina. Study shows that use of LED will be 90% by 2020. We have to be aware of this phenomenal. Subscribe to Shiblis Teaching: Click Here For Windows: Click Here For Android: Click Here Like comment and share this video with your friends. Please don't forget to subscribe to my channel
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