How do i know if sunglasses really have UV protection?!
Question: How do i know if sunglasses really have UV protection!?
I had some cheap sunglesses but i thought they were ok since it said "100% UV protection" on them!. But i doubt it since everytime I wore them outdoors i got horrible headaches and my eyes would look sunburned!.
So how can i know if it's true!?Www@Answer-Health@Com
So how can i know if it's true!?Www@Answer-Health@Com
Answers:
I think your eyes looking sunburned is a different issue than them getting sunburned that may have nothing to do with your sunglasses!. Talk to an optometrist about your eyes!. As for the sunglasses, the 100%UV protection has become very common, so unless you get them from a stall in the middle of the street for $2 you shouldn't have a problem!.
Typically, most sunwear lenses will be UV absorptive to some degree!. If lenses are marked CR-39R plastic, about 88% of UV light is absorbed!. If sunglasses are polycarbonate, UV absorption will be 100%!.
All better quality polarized non-prescription sunglasses sold through optical stores are 100% UV absorbing!. For the very inexpensive polarized sunglass
Typically, most sunwear lenses will be UV absorptive to some degree!. If lenses are marked CR-39R plastic, about 88% of UV light is absorbed!. If sunglasses are polycarbonate, UV absorption will be 100%!.
All better quality polarized non-prescription sunglasses sold through optical stores are 100% UV absorbing!. For the very inexpensive polarized sunglass
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