Intraocular pressure during vitrectomy in the diabetic patient

23 eyes underwent vitrectomy for diabetic proliferative retinopathy complications: vitreous hemorrhage with or without tractional retinal detachment. After 6 months of follow-up, 64% of eyes had final visual acuities of 1/40 or better. Preoperative iris neovascularization and preoperative detachment of the macula have a worse prognosis. Decrease of peroperative complications is allowed by checking of intraocular pressure during vitrectomy.