Prognosis of vitrectomy for advanced stage proliferative diabetic retinopathy.

Objective To evaluate vitreoretinal surgery in the treatment of advanced stage diabetic retinopathy(PDR) from related clinical results.Methods The clinical data of 60 cases,72 eyes of 6(out of the whole retina) PDR who had undergone vitreoretinal surgery were retrospectively analyzed.All eyes underwent vitrectomy surgery in combination with or without removal of the crystal and were injected with inert gas or silicone oil.OCT macular surgery was performed in all during a one-year follow-up.Results 42 eyes successfully had the retina reset by one operation,and 30 were failures.Vision that lost its sense was found in 3 eyes post-operatively and none pre-operatively,light perception was in 18 eyes post-operatively and 42 pre-operatively,manual was in 26 eyes post-operatively and 21 pre-operatively,number / 10 cm～ 0.1 was in 20 eyes post-operatively and 9 pre-operatively,and ≥ 0.1 in 5 eyes post-operatively and none pre-operatively.Conclusion Vitreoretinal surgery is difficult to perform with a high rate of anatomic reduction,but a poor functional recovery rate for late PDR with a macular area.