Keratometric cylinder and visual performance following phacoemulsification and implantation with silicone small-incision or poly(methyl methacrylate) intraocular lenses.

Silicone and poly(methyl methacrylate) (PMMA) intraocular lenses from Allergan Medical Optics were implanted in the posterior chamber of 96 cataract patients with small or standard incisions following phacoemulsification. Significantly less keratometric cylinder (astigmatism) and better uncorrected visual acuity were observed during the six week postsurgical follow-up in the patients who received the small incision silicone lens than in those who received the standard PMMA lens.