Fig. 41. Transmission curve of the AcrySof® Natural is, on average, similar to that of a 25-year-old patient. With current formulation, which is the same for all diopter (D) powers (and thus optic thicknesses), the range is approximately age 4 to 53 years depending on IOL power 10 to 30 D. (Courtesy of James A. Davison, MD, Wolfe Eye Clinic, Marshalltown, IA, and Anil S. Patel, PhD, Seattle, WA.)