Photochromic Anti Blue Light Glasses Women Stylish Titanium Glasses Frame Men Photochromic Sunglasses Reading Comput Eyeglasses Photochromic Prescription Glasses Photochromic Reading glasses Lenses are clear when indoors or at night and automatically darken to a sunglasses tint when exposed to UV sunlight. Lenses will begin to clear as soon as they are away from UV sunlight, and will be noticeably lighter and mostly clear within a few minutes. They absorb UV radiation that can otherwise damage your eyes. They are an excellent solution for people who hate constantly switching between their reading glasses and their shades. Anti Blue Light and UV400 Protection Lenses Wearing a pair of anti blue light glasses will protect your eyes from the harmful blue light. No dry eyes during long time working with electronic screens.No headache after all day long office working. UV400 protective coating protects your eyes from UV damage outdoors will it allow you to see better.These reading glasses are low chromatic aberration, bringing you a good visual experience, not easy to break, easy to clean, and safe to wear. _x000D_