A popped-out lens is usually a two-minute inconvenience rather than a broken pair of glasses. The lens itself normally survives the fall; what failed is the retaining system around it — a screw, a nylon cord, a stretched rim groove, or a frame fron...
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The short answer: polarized sunglasses contain a microscopic vertical filter that blocks reflected glare, while tinted sunglasses simply darken everything you see. Choose polarized when you drive, boat, fish, or ski near water or snow; choose tinte...
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Glasses are made of two main physical components: lenses and frames. Lenses are almost always made from plastic-based materials such as CR-39, polycarbonate, Trivex, or high-index resin, while frames are typically made from cellulose acetate, titani...
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You have probably seen "anti-reflective" or "anti-glare" listed as a lens option and wondered whether they mean the same thing. They do not. Anti-reflective (AR) coating removes reflections bouncing off the lens surface, while anti-glare treatment ...
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