Archgon Fashion Computer Glasses Anti Blue Light Titanium Frame Crystal Lens Model Oxford Academy GL-B191-K FDA registered company. Buy with confidence. Help reduces symptoms of dry eyes, strain, and headache from long hours of viewing NON-PRESCRIPTION acrylic safety lens. Special coated lens blocks harmful digital blue-light emitted from the screen of your computer, cellular phone, TV, and other electronic devices TITANIUM METAL ultra light frame. Clear lens reduces flare and has minimum effect on color accuracy, designed for serious hobbyist, office staff, and professional as well 57.89% Blue light blocking percentage. 99% UV Protection. Tested by SGS, a Swiss-based lab. Note: 100% of blocking percenatge will cause "color variation" Dimension: Lens width 54mm, lens height 30mm, bridge (nose) width 17mm, temple (arm) length 137mm. Comes with carrying pouch and cleaning cloth