Risk factors of secondary neovascular glaucoma after vitrectomy for proliperative diabetic retinopathy

Abstract:

Objective：To observe the risk factors of secondary neovascular glaucoma（NVG） after vitrectomy for proliferative diabetic retinopathy（PDR）. Methods：A retrospective review was conducted on 288 eyes that underwent vitrectomy for PDR. Multiple factors were analyzed for their effect on secondary NVG using Fisher exact probability test. Results：Eight eyes（2.8%） developed secondary NVG. Fisher exact probability test showed that the P values of PDRⅥ，vitreous hemorrhage after vitrectomy and mutiple-surgery were 0.023，0.002，0.006 respectively. Conclusion：PDRⅥ，vitreous hemorrhage after vitrectomy and mutiple-surgery are main risk factors of secondary NVG after vitrectomy for PDR. Effective treatment at early stage of PDR and precaution of complications may reduce the incidence of secondary NVG.