What are photo chromatic lenses?
PHOTOCHROMATIC LENSES contain light-sensitive molecules that darken and lighten according to the intensity of ultraviolet light/ Sun Rays. Their advanced technology adjusts to changing light, so you see clearly and more comfortably in virtually any light condition. Indoors, Photo chromatic Lenses are as clear as your regular eyeglasses. Outdoors, they quickly darken, getting as dark as sunglasses, if necessary. They provide 100% UV protection.