Scicon Sports SCN-XT photochromic lenses offer the safety and performance required by professional athletes who do not accept compromises and demand accurate, precise, and defined vision. Conventional lenses are all about blocking out the sun, and in turn making, you see less of the world. The SCN-XT™ by Essilor Sun Solutions lens collection helps you see the world in more detail, depth and in ultra definition with high-quality polymer lens materials.