Factors Predisposing to Poor Visual Acuity after Vitrectomy for Proliferative Diabetic Retinopathy

ABSTRACT

PURPOSE: To evaluate the predisposing factors of a visual acuity of less than 0.1 after vitrectomy in proliferative diabetic retinopathy. METHODS: The medical records of 310 eyes of 295 patients were reviewed, and the eyes were divided into 2 groups postoperative visual acuity less than 0.1 (131 eyes, 42.2%), and more than 0.1 (179 eyes, 57.8%). RESULTS: Univariate analysis revealed that postoperative visual acuity of less than 0.1 was associated with preoperative retinal detachment, preoperative macular detachment, intraocular tamponade, absence of cataract operation, preoperative visual acuity of less than 0.02, and a treatment need for postoperative high intraocular pressure. Multivariate analysis revealed that postoperative visual acuity of less than 0.1 was associated with preoperative macular detachment and treatment for high postoperative intraocular pressure. CONCLUSIONS: This study showed that diabetic patients who have visual acuity less than 0.1 after vitrectomy are likely to have preoperative macular detachment or to need treatment for postoperative high intraocular pressure.