Lens Materials
High-Index 1.67: High-Index 1.67 is is a premium lens that is about 45% thinner and 35% lighter than conventional plastic lenses. This material is excellent for high power prescriptions. It is also our preferred choice when making glasses that are known as drill mounts where we must drill holes in the lenses to attach the frame. This lens also provides excellent optical quality, ultraviolet protection, scratch resistance, and can be lightly tinted to any color.
Polycarbonate: Polycarbonate is a premium lens material that is the lightest and most impact resistant available. This lens provides excellent optical quality and thinner lenses than plastic. It also has ultraviolet protection, scratch resistance, and can be tinted to any color.
Plastic Lenses: Plastic or CR-39 is the basic lens material that provides good optical quality. With high prescriptions pastic lenses can be thick and heavy. Protection from ultraviolet light must be added as plastic does not inherently block it. Plastic lenses are easier to scratch than polycarbonate and Hi-Index
Glass: Glass is the basic lens material that provides superior optics and scratch resistance. Unfortunately this lens has a number of limitations including inferior impact resistance, thickness and heavy weight. Due to glass's extreme weight, we have seen this material become rarely use. |
