eHow launches Android app: Get the best of eHow on the go.
Summary: Learn about polycarbonate lenses in this free eye care video series.
Stefan Czelusta is the office manager at Texas State Optical in Austin, Texas. He has worked in optics for more than nine years. Czelusta helps customers choose glasses, contacts and...read more
"All right, the next option I’m going to talk about for ladies is going to be the polycarbonate lens. Polycarbonate is a little bit thinner than your regular plastic but not quite as thin as your high index lenses. We recommend polycarbonate to our active female clients, those of you who play sports, who are in any type of activity where you could get hit in the face and your lenses could shatter back into your eyes. These are safe, these are safety lenses, they are for your protection. We also recommend those, these lenses for that semi-rimless variety, the one that has the monofilament string similar to the one I am wearing now. Polycarbonate lenses are resistant to cracking and bubbling, so that’s why they recommend them in these types of frames, on these semi-rimless frames. One of the drawbacks to polycarbonate lenses is that you do not see as well optically out of the lens as you do a plastic or high index lens. Light doesn’t diffuse as quickly through them. Most of our patients would not notice, but you may notice if you go from a plastic high index lens to a polycarbonate. So consider that when making your decision as to what lens to go with. Again, always ask your associate what’s best, your optical associate, your optician what’s the best lens option for you but bear in mind the polycarbonate lens strictly should be either for the semi-rimless or rimless frames or if you’re going to be playing in some sort of activity, that you may get hit, you know, in the face and have a lens shatter back at you. "
eHow Article: Polycarbonate Eyeglass Lens