If you are over 40 and having difficulty with your vision, chances are you are experiencing presbyopia, the common gradual loss of near vision. But there is good news: you have more choices today than ever before. You don't have to carry a separate pair of glasses for reading or wear lined bifocal lenses like your parents did. Progressive lenses offer a smooth transition from distance vision through intermediate vision to near vision, and they supply all the in-between corrections as well. This means that instead of having just two different viewing zones (near and distant), like with bifocals, progressive lenses have progressive powers of correction (from bottom to top), easing eye strain and providing the most natural vision correction. The world's very first progressive lens, invented in 1959, was a Varilux lens.And since that time, Essilor has continued to innovate and set new standards of performance in vision care for presbyopic patients. Varilux lenses continue to be the #1 prescribed progressive lens by eyecare professionals around the world.