Trivex is a much higher quality shatter resistant lens material. Compared to Polycarbonate, Trivex is thinner, lighter, and has a higher Abbe Value (IE: superior optical quality).
If you are used to wearing a Polycarbonate lenses you will literally see better through a Trivex lens.
If you are used to wearing a Polycarbonate lenses you will literally see better through a Trivex lens.