At the time polycarbonate was almost the perfect lens material, yet we are now emphasizing the benefits of the new “Tough” TM lens material.
Compared to other lenses it has exceptional impact resistance properties whilst having good static load resistance contribute to ophthalmic lens wearer eye safety, and also bettering polycarbonate with a 42 Abbe value.
“Tough” TM brings superb optical quality. With both high refractive index and high Abbe number.
“Tough” TM lenses are lightweight optical material to combine the best attributes of Hi-Tech advance monomers. The result is a product that provides high impact resistance while retaining superior optical performance. attributes for impact resistance. “Tough” TM are perfect for retaining superior optics and processability because it is highly stable.
Lightweight “ToughTM” blends the benefits of light weight and thinness with available advance index of 1.60, often resembling a high index lens, but stronger.