The result is a more wearable pair of lenses with a versatility that is easier on your eyes. And, since the KODAK Precise Progressive design all but eliminates peripheral distortion, wearers don�t have to worry about the �swim� effect common with lesser progressive lenses. The KODAK Precise Progressive is the most aesthetically-minded lens. Lens lines are eliminated, flatter base curves improve the overall look of the lenses, and high index materials minimize lens thickness.