what is a trivex lens
Trivex (Best for rimless frames) Lenses. Trivex lenses are a relatively new development in the lens world. Trivex lenses have a 1.53 index which makes them a bit thinner than regular plastic lenses, and a bit thicker than polycarbonate lenses.rivex (Best for rimless frames) Lenses. Trivex lenses are a relatively new development in the lens world. Trivex lenses have a 1.53 index which makes them a bit thinner than regular plastic lenses, and a bit thicker than polycarbonate lenses.