Lens Material Choices:
Plastic CR-39 - This lens material is the most economical. Plastic is the least impact resistant of the lens materials offered.
Polycarbonate - This material is 20-30% thinner and lighter than Cr-39 plastic. Polycarbonate is the most impact resistant of any lens material and is strongly recommended for use in active sports. Scratch resistant coating is included.
Polycarbonate 1.0 - This is the thinnest, lightest lens material in existence. This material is recommended for stronger prescriptions. Scratch resistant coating is included.
Hi Index Plastic - This material lacks the impact resistance of Polycarbonate 1.0 but is comparable in thickness and weight. Hi Index material is considered to have the best optics available in a thin lens design.
The intraSPXTM insert is not available in all prescriptions. If you have a strong prescription, please call us at 800-878-5960 to see if it is compatible with the intraSPXTM system.