title: Pars plana vitrectomy.
abstract: Sixty-four consecutive pars plana vitrectomies were performed with the Douvas roto-extractor for anterior and posterior vitreous opacities. Eighty-four per cent of the anterior segment vitrectomy patients obtained improvement in visual acuity after surgery. Only 60% of the posterior segment patients obtained improvement in visual acuity, while only 45% of the eyes with active proliferative diabetic retinopathy had improved vision.
mesh_terms: D000328:Adult; D000368:Aged; D002387:Cataract Extraction; D003930:Diabetic Retinopathy / Q000150:complications; D005069:Evaluation Studies as Topic; D005128:Eye Diseases / Q000601:surgery; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D008566:Membranes / Q000601:surgery; D008875:Middle Aged; D011183:Postoperative Complications; D012163:Retinal Detachment / Q000601:surgery; D013203:Staphylococcal Infections / Q000209:etiology; D014792:Visual Acuity; D014822:Vitreous Body / Q000601:surgery*