Abstract
Objective To determine the incidence and predisposing factors for the poor visual acuity of less than 0.1 after vitrectomy in the treatment of proliferative diabetic retinopathy (PDR). Methods The clinical data of 95 cases (120 eyes) of PDR patients treated with vitrectomy were analyzed retrospectively. Compared the potential predisposing factors to the poor visual acuity between the two groups: one group with postoperative visual acuity of less than 0.1, the other group with postoperative visual acuity of 0.1 or more than 0.1. Results There were 37 (31%) eyes with postoperative visual acuity of less than 0.1. Univariate analysis revealed that there were association between the poor postoperative visual acuity and preoperative macular detachment、intraocular tamponade, postoperative high intraocular pressure, with no preoperative panretinal photocoagulation. Multivariate analysis revealed that there were great association between the poor postoperative visual acuity and preoperative macular detachment, postoperative high intraocular pressure. Conclusions The poor visual acuity of less than 0.1 after vitrectomy in the treatment of PDR has great association with preoperative macular detachment, postoperative high intraocular pressure. Key words: Proliferative diabetic retinopathy; Vitrectomy; Visual acuity; Predisposing factors
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