Crystalens AO.

The article provides information on the Crystalens AO, the first aspheric, aberration free, accommodating intraocular lens (IOL), approved by the U.S. Food and Drug Administration (FDA). It states that the Crystalens AO IOL provides excellent uncorrected distance, unmatched intermediate, and good quality near vision after the refractive surgery. Also discussed are the impact of spherical aberration on visual performance and the effect of the shape of the pupil and dynamics on retinal image quality.