Posterior capsule opacification after lens implantation: incidence, risk factors and management

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Postoperative capsular opacification is a multifactorial physiological consequence of cataract surgery. Opacification involving the central posterior capsule has a significant impact on high- and low-contrast acuity and low-contrast sensitivity. The proliferation, migration and abnormal differentiation of residual lens epithelial cells and fibers in the capsular bag have been implicated in the pathogenesis of posterior capsule opacification (PCO). The incidence and severity of PCO correlates to the use of surgical techniques, intraocular lens optic edge designs and intraocular lens materials. This article summarizes the clinical studies with recommendations for retarding the development of central PCO. These studies will remain critical for future endeavors undertaken for the eradication of PCO.

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