Essilor International (Compagnie Generale d'Optique) designs, manufactures and sells ophthalmic lenses, ophthalmic optical instruments and equipment. Co.'s activities are divided into three segments: Lenses and Optical Instruments (Co. designs, manufactures and customizes corrective lenses such as: Varilux (progressive lenses); anti-reflective, smudge-proof and anti-static lenses (Crizal); Nikon lenses, Transitions variable-tint lenses and Kodak lenses under agreements; polarized lenses (Xperio) and fog-proof lenses (Optifog)), Equipment (Co. produces, distributes and sells equipment and consumables used by prescription laboratories) and Readers (Co. designs and sells reading glasses).