After 40 our eyes gradually loose the ability to focus up close. It's a natural part of aging called presbyopia. Since 1959, with the invention of the world’s first progressives, Varilux has innovated lens science to advance and set new standards of performance for vision and vision care for presbyopic patients. Now, after years of research, using innovative new lens design and manufacturing process, Varilux introduces Varilux PHYSIO. Using new W.A.V.E. technology, Varilux PHYSIO is the most advanced progressive vision lens today. With superior distance vision acuity, a thirty percent wider mid-range field of vision, and the most accurate and easiest transition to near vision focus, Varilux PHYSIO lets you move seamlessly from one field of focus to another, with no uncomfortable head or eye movements!