Types of Lens Materials

Besides the standard prescriptions, there are many lens options when choosing your glasses. The most common lens materials are the following:

Glass Lenses

Glass lenses provide excellent visual acuity. However, they are very heavy and prone to cracking and shattering. Their substantial weight and potential safety issues have made them unpopular. They’re still available, but most lenses are made of plastic now.

Plastic Lenses

Plastic lenses are the most common type because they can produce similar results to glass. Plastic is cheaper, lighter, and safer than glass.

High-Index Plastic Lenses

High-index plastic lenses are even thinner and lighter than most plastic lenses.

Polycarbonate and Trivex Lenses

Polycarbonate lenses are standard in safety glasses, sports goggles, and children’s eyewear. They’re lightweight and impact-resistant, making them much less likely to crack or shatter.

Similarly, Trivex is a lightweight and durable plastic used in high-risk environments. These lenses are thinner than basic plastic lenses but not as thin and lightweight as high-index lenses.