Archgon Fashion Computer Glasses Anti Blue Light UV Protection A+ Crystal Tempered Lens Model Paris Romance GL-B111-BL NOT READING GLASSES. FDA registered. Non-prescription lens. Help reduces symptoms of dry eyes, strain, and headache from long hours of viewing. Special coated lens blocks harmful digital blue-light emitted from the screen of your computer, cellular phone, TV, and other electronic devices Clear lens reduces flare and has minimum effect on color accuracy, designed for serious hobbyist, office staff, and professional as well 57.89 percentage of Blue light blocking percentage. 99 percentage of UV Protection. Tested by SGS, a Swiss-based lab. Note: 100 percentage of blocking percentage will cause "color variation" Dimension: Lens width 50mm, lens height 50mm, bridge (nose) width 13mm, temple (arm) length 138mm. Comes with carrying pouch and cleaning cloth