Essilor is the leader in manufacturing and wholesale distribution of optical lenses in the United Kingdom.
Essilor is world popular for the Varilux lens, the world's first varifocal, which was invented in 1959. About 300 million people around the world wear or have worn Varilux lenses, with a new wearer every three seconds. Essilor has 5 major brands of  lens technology: Varilux, Crizal, Xperio, Optifog and Transitions.