Cut the blue lights emitted from PCs, smartphones, and TV to gently protect your eyes. In addition, the lens is applied to a reflection coat (AR coat), which efficiently suppresses unnecessary reflection, and has the effect of controlling the glare and flicker due to blue light. UV absorbers are kneaded into the lens, ultraviolet rays will cut more than 99%. New with box. Aged 5-10 years This glasses block ultraviolet rays, but not sunglasses (they don’t reduce brightness).