What are Ultra Violet absorption and Lenses?
Spectacle lenses, depending on the type of material will absorb varying amounts of ultraviolet light. In order of best absorbing lens the materials are polycarbonate, plastic and finally glass lenses. Different standards define the amount of absorption required, and/or the definition of the categories for spectacle lenses. The amount of UV absorption is also influenced by tinting, dying and lens coatings.
