OptiPal Feature-Fit Progressive lens design is a step ahead in lens customization. To further enhance wide fields of view and reduce side distorions, while maintaining proper positions of vision zones, the measurements of the wearer of the frame are also taken into account, such as the distance between the eye and lens and the angle at which the frame sits on your face. The result is a lens that is unique to your face fitting parameters offering you wide, heavily reduced distortion, visual fields and very fast adaptation to your new lenses