Archgon Fashion Computer Glasses Anti Blue Light UV Protection Crystal Tempered Lens Model Rio Samba GL-B107-Y 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 MEDICAL GRADE anti-allergy 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 percentage will cause "color distortion" Dimension: Lens width 53mm, lens height 31.5mm, bridge (nose) width 16mm, temple (arm) length 139mm. Comes with carrying pouch and cleaning cloth