HD Digital - Definity 3, Polycarbonate Lenses

The Varilux Definity Polycarbonate plastic lens is digitally carved on both the front and back side of the lens.  This results in less distortion and a wider "corridor" or viewing area in the middle of the lens.  As a result, you get the most comfortable and easy to wear progressive lens that is available on the market today.  The Definity lens is comparable to the Physio Enhanced lens, so it is even more comfortable to wear than the Physio or the Comfort Lens. 
The Varilux Definity plastic lens is made by Essilor, the world's largest maker of high quality eyeglass lenses.

Johnson & Johnson originally developed the Definity lens technology, and then sold it to Varilux.    It is a great high index lens for those with an active life - golfing, biking, hiking and tennis and moderate corrections.