Sun glasses are now treated more as fashion accessory than as an eye protection device . People have forgotten what is/was the real purpose of sunglasses.They were suppose to protect eyes from harmful ultraviolet Sun rays.People are buying Sunglasses more for looks than effectiveness. A good sunglass has UV-A and UN-B protected glasses. But the question arises how does lay man come to know whether the glasses being bought are the right quality or not.The easiest way is to insist for a labeled product and good sun glasses label will mention about UV-A and UN-B protection. Also note that the frame must be wide enough to cover the eyes , eyelids and fragile tissue around the eyes. This prevents fragile tissue around the eyelids from developing melanoma.
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