后囊膜混浊(PCO)是白内障囊外摘出术后最主要的并发症。目前包括光动力治疗在内的许多防治研究已取得一定进展,但都不能安全而有效地应用于临床。光催化是近年来最活跃的研究领域之一。大量研究证明二氧化钛(TiO2)光催化剂能有效地杀灭多种肿瘤细胞。笔者综述了纳米TiO2光催化 Posterior capsule opacification (PCO) is the most important complication after extracapsular cataract extraction. At present, many prevention and cure studies including photodynamic therapy have made some progress, but none of them can be applied safely and effectively in clinical practice. Photocatalysis is one of the most active research areas in recent years. Numerous studies have demonstrated that titanium dioxide (TiO2) photocatalyst can effectively kill many kinds of tumor cells. The author summarizes the nano-TiO2 photocatalysis