Progressive Thin & Dark Glass Lenses

Progressive Thin and Dark Glass Lenses are made with a material that can be surfaced to 1.5 millimeters, much thinner than regular glass lenses. The secret is in the material itself, premium Corning Thin and Dark glass lens blanks. These photochromic glass lenses are clear indoors and darker than PhotoGray Extra glass lenses when you are outdoors. All glass lenses are for full frames only. Please do not order glass lenses if you have semi-rimless or drill-mount frames.