Clinical Analysis of Vitrectomy for Complication of Proliferative Diabetic Retinopathy

Ahn, Joong Bin; Huh, Kuhl

Abstract

To evaluate the postoperative prognostic factors of pars plana vitrectomy for the proliferative diabetic retinopathy, the authors studied retrospectively the surgical results of 65 eyes that have been followed over 6 months postoperatively. The surgical results were varied according to the indication. Seventy six percent of eyes with vitreous hemorrhage obtained final vision of 5/200 or better. Similar results were obtained in 73% of eyes with macular traction detachment, 47% of eyes with rhegmatogenous-traction detachment. Rhegmatogenous-traction detachment has less favorable outcome than vitreous hemorrhage and macular traction detachment. Factors associated with a favorable visual prognosis were as follows: (1) preoperative visual acuity of 5/200 or better, (2) the avoidance of performing lensectomy, (3) the avoidance of using intraocular gas bubbles, (4) the absence of preoperative retinal detachment. Thirteen eyes resulted in anatomic failure ; vitreous hemorrhage was the cause of failure in 4 eyes(31%) and anterior hyaloid fibrovascular proliferation in 3 eyes(23%), The causes of poor visual outcome included optic atrophy in 3 eyes, ischemic maculopathy in 2 eyes, submacular fibrosis in 1 eye and cataract in 1 eye.