Our proprietary Photochromic Radium HD+ lenses for Vantage is a photochromic lens that adjusts tint intensity according to the amount of UV light in the environment, changing from clear to dark gray and featuring an azure anti-reflective coating for HEV blue light anti-glare.     Superior anti-fog technology   Light transmission (VLT): 14-87% Category: 0-3 *Please note: these are only lenses, no frames are included.