It's the commonest complication of cataract surgery. About 1 in 5 folks create PCO in just one 12 months soon after cataract surgery. About a person-3rd build PCO soon after 5 years. Corneal ectasia. Corneal ectasia, a ailment in which the cornea is simply too thin and weak, has become the a lot more-major complications. The weakened cornea ti