Posterior capsule opaciiication(PCO) is the most common complication of extracapsular cataract extraction combined with intraocular lens implantation,and is the main cause of decreased visual acuity after surgery.The proliferation of residual lens epithelial cells is the leading cause of PCO.PI3K-AKT-mTOR signaling pathway plays an important role in the cell proliferation,differentiation and protein synthesis,and is closely correlated with many diseases.This paper reviews the role of PI3K-AKT-mTOR signaling...