See Tough Eyes Features and Benefits
SOLA Tough Eyes lenses are made for people who go to extremes.
SOLA Tough Eyes polycarbonate (PC) lenses provide the ultimate in impact resistance, with the industry's toughest hard coating for superior scratch resistance. So even the most demanding consumers will find it hard to hurt them.
Tough Eyes lenses feature SOLA's proprietary hard coating for superior scratch protection. Tough Eyes lenses provide unsurpassed impact resistance for maximum safety and yet are ultra-lightweight for super comfort. These lenses are up to 10-times more impact resistant than hard resin or glass lenses. And when it comes to visual performance, Tough Eyes lenses set the quality standard for optical precision and clarity.
SOLA's portfolio of Tough Eyes PC lenses is extremely broad offering virtually every base, curve, color and diameter. This super tough lens resists cracking or crazing and offers excellent compatibility adhesion for additional performance coatings such as mirrors, anti-reflective or anti-fog coatings. SOLA lenses are manufactured with only ophthalmic high-grade resin providing superior quality optics.
A plastic lens that goes to extremes.
SOLA Tough Eyes lens has received the COLTS Quality Seal, having passed the rigorous testing requirements by the accredited ophthalmic industry independent testing facility, COLTS Laboratories. This approval was the first to be awarded to a sunlens manufacturer. When testing against the leading scratch resistant lenses, Tough Eyes lenses were the only ones to achieve the highest rating possible in all areas: 5 stars for abrasion/scratch resistance, adhesion and environmental durability.

INTERNAL SOLA TESTING SIHRC, May 1998