Posterior cataract

After-cataract refers to a special state in which the lens cortex remains in the pupil area or a fibrotic membrane is formed after the cataract is surgically removed, or after the traumatic cataract is partially absorbed. This complication is particularly prevalent and severe in early intraocular lens implantation where the importance of lens epithelial cells and cortical clearance is unknown. Even in the 1990s, after ECCE combined with posterior chamber intraocular lens implantation, this complication is still a major clinical problem, and its incidence is as high as 25% to 50%. The structure and morphology of posterior capsule opacity are very complicated, mainly related to the amount of residual cortex after surgery, the presence or incompleteness of the posterior capsule, and the severity of postoperative inflammation.