Tom Ford Blue Block Square Opticals pair an oversized square acetate frame with blue-block lenses to reduce digital eye strain and offer ready-to-wear protection. Key attributes: Brown | Avana scura | Acetate | Blue light protection | Increases visual comfort during extended screen use | Ready-to-wear blue block lenses | Lenses removable for prescription by an eyecare professional | Oversized square frame | Full-rim design | T logo on front and temples | Shiny acetate finish | Dimensions & fit: 53-16-140 | Oversized fit | Composition & care: Acetate