Anti-blue glasses have Selective filtering of harmful UV and Cut off bad light from TV, computer, Mobile, Ipad and all gadgets. Neutralizing high energy blue lights. Blocking harmful UV rays. Reducing glare for more comfortable vision as you work on the screens. Improving contrast for better color perception. Preventing eyes from strain, sleep disruption, and fatigue. Use for all spectacle wearers, especially office workers and individuals who spend long hours using digital devices who demand optimum visual performance and comfort.