Watching out for a shady deal. Could your sunglasses be giving you permanent eye damage? How to shop for the best kind of protection.
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D004867:Equipment Design; D005135:Eye Protective Devices / Q000592:standards*; D006801:Humans; D011835:Radiation Protection / Q000295:instrumentation*; D014466:Ultraviolet Rays / Q000009:adverse effects*; D014481:United States