Many issues are taken into consideration when determining the type and shape of eyeglass lenses that best suit you. For example, a lens that curves inward, concave, is used to correct nearsightedness, while a lens that curves outward, convex, is used to correct farsightedness. A change in the shape of the cornea, or astigmatism, is normally corrected by a cylinder shaped lens. The eyeglass lens is a tool used at our Beaver optometry office, Eye Town, to focus light properly onto your retina. Of course, the type of lens recommended depends on the kind of vision difficulty you’re having.
In the past, eyeglass lenses were made only of glass but today most eyeglasses are made of high-index plastics. These new lenses are much lighter, do not break as easily, and can be treated with a filter to protect your eyes from damaging ultraviolet light. Polycarbonate lenses are a modern eyeglass lens that is recommended by our Beaver optometry office because they are lighter, thinner, and more scratch-resistant than glass lenses. These eyeglass lenses are shock-resistant and a good choice for people who participate in sports regularly, work in a job environment where their eyeglasses can be easily scratched or broken, and for children who may easily drop and scratch them. Polycarbonate lenses also provide ultraviolet protection. Trivex lenses are made from a newer plastic with similar characteristics of polycarbonate lenses. Lightweight, thin, and impact-resistant, they may result in better vision correction than the polycarbonate lenses for some people. Photochromic lenses are made of glass, plastic, or polycarbonate and darken when exposed to ultraviolet light. These lenses work perfectly as sunglasses and automatically lighten when not exposed to sunlight.
As technology progresses so do choices in eyeglass lenses and our opticians will educate you on the best choice for your particular vision issues. Whatever your situation, the dedicated staff at our Beaver optometry office are experts in their field and will provide you with the best solution for all your eyeglass lens needs. Our goal is to make sure you see things as clearly as possible and our lens specialists work with you to give you the special care and service you deserve.