December 19, 2010
Polycarbonate lenses are thinner and lighter than traditional plastic eyeglass lenses. They are up to 10 times more impact-resistant than regular plastic lenses. Polycarbonate lenses make a good choice for children’s glasses, sports eyewear and certainly industry safety glasses. In addition, they are also used for rimless eyewear designs where the lenses are attached with drill mountings.
Polycarbonate lenses block 100 percent of the sun’s UV rays. This built-in protection is provided by the lens material itself. Polycarbonate lenses are actually constructed out of material that is identical to what is called “bulletproof glass”; however, it is a relatively soft material while extremely impact resistant. Since the polycarbonate lens is flexible, a scratch-resistant coating is recommended to protect against surface scratches. Today’s scratch coatings can make the surface of polycarbonate lenses hard which will protect them against scratches.
Polycarbonate lenses are safer for eyeglasses than the traditional lens material because they aren’t brittle and won’t usually break if they come into contact with balls or racquets during sports activity for example. For this reason polycarbonate lenses are recommended for children’s glasses and all types of children’s frames even if they are not participating in an organized sport.
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About Us – GVS is the largest third party optical administrator in the New York area serving over 5 million union members. For more information see www.generalvision.com or e-mail Ken Levin at KenL@gvs.bz.