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Lens Material
Lens Material
The main functional component of eyeglasses are the lenses. Lens can be highly
customized with various treatments to meet your work requirements
and improve your vision. These is a brief overview of the key benefits of each material
Plastic Lens (or CR39)
Plastic lens are a very popular and affordable option. The reason they are widely used is that they provide comfort and offer a wide range of vision correction. One drawback of plastic lens is that they easily get scratches so to avoid this problem scratch-resistant coats are applied on the lenses to make it more durable. These lenses are usually used for light prescriptions that range from +/-1.75. These lenses are included with every non-safety adult frame.
Polycarbonates
If you are looking for thinner and durable lenses up to 10 times as compared to a plastic lens, then polycarbonate lenses are the best choice. They also provide protection against ultraviolet radiation. If your prescription ranges from +/-2.00 to +/-4.00 or to be used by children under the age of 18 or the wearer has an active lifestyle or one who needs ANSI-rated safety protection, then polycarbonate lenses are the best choice.
High Index
High-index lens material is thin, light, comfortable and provides durability and protection from UV rays. These properties make high-index lenses great a great choice. They are thinner than plastic and lessen the ‘bug eye’ effect from standard lenses. Wearers with prescriptions greater than +/-2.00 are good candidates for Hi-index lens.
Trivex
This material was originally made for military uses. These lenses are comfortable, lightweight, durable, provide protection and a clear vision to the wearer. If you are looking for superior optical quality, then Trivex lenses are the best choice as they can be used with any prescription.