6 votes

Do mineral glass lenses on sunglasses block 100% of harmful UV radiations?

Most glasses block some amount of UV light, particularly the "harder" UV like UVC and UVB. UVC is not really relevant in the context of sunlight at normal altitudes, as the atmosphere, in ...
John Doe's user avatar
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6 votes

Does looking at a monitor screen in a room with very low light source damage your eyes?

According to various experts' opinion, there's no evidence of permanent damage, but temporary strain, yes, e.g. according to this University of California-Irvine page A frequently made observation ...
Fizz's user avatar
  • 59.8k

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