Fig. 49. The apodization of the ReSTOR™ optic features taller steps centrally with progressively shorter steps peripherally. This results in a contribution of virtually equal portions of light for distance and near with small pupil diameters and increases the contribution for distance vision as the pupil gets larger and more of the peripheral optic is used. (Courtesy of Mike Simpson, Alcon Laboratories, Fort Worth, TX, and James A. Davison, MD, Wolfe Eye Clinic, Marshalltown, IA.)