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.

***NOTE: The intraSPX™ system is not available for all prescriptions. If you have a strong prescription, please call us at (08) 8251 5285 to see if yours is compatible with the intraSPX™ system.
We need a copy of your current prescription to process any orders for the intraSPX glasses. We will contact you shortly after you have placed your order to obtain a copy of your prescription.