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Old Apr 29th 2010, 10:09 AM   #1
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Is it dangerous to look at objects illuminated by strong ultraviolet sunlight atnoon

during the summer? Besides sunlight hitting mirrors, glass, shiny metal and water(which produce glare obviously), if I say look at sunlit grass, or trees or most other things I encounter outside on a very sunny summer day, are the light-waves bouncing off of them a potential problem compared to looking at objects indoors that are illuminated by normal light, assuming I don't wear sunglasses outside(and also not looking at the sun or in the direction of the sun). Is it dangerous for the eyes?

Is there even a word for this "second hand" kind of sunlight that bounces off of objects on sunny days? Thanks.
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Old May 3rd 2010, 04:18 AM   #2
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It all depends on whether the material you are looking at reflects or absorbs ultruviolet light.
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