Prizm lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility Plutonite Lenses offer top UV Protection filtering 100% of all UVA, UVB, UVC and harmful blue light up to 400nm Patented High Definition Optics (HDO) provides superior optical clarity and razor-sharp vision at every angle Glare reduction and tuned light transmission of Iridium lens coating