ObjectiveTo observe apoptosis and apoptosis related gene bak and bcl-xl expressions in cells of aspiration fluid from vitrectomy and epiretinal membrane(ERM) of proliferative vitreoretinopathy(PVR) and their relationship.

• 目的 观察增生性玻璃体视网膜病变 (PVR)玻璃体内和视网膜前膜 (ERM)中细胞凋亡、bak和bcl xl基因表达、以及细胞凋亡和基因表达之间的关系。