title: Visual loss following panretinal photocoagulation for proliferative diabetic retinopathy.
abstract: We reviewed the preoperative, postoperative, and follow-up examinations, fundus photographs, and fluorescein angiograms of 175 eyes of 134 patients with proliferative diabetic retinopathy treated with panretinal photocoagulation. Forty-four (25%) of these eyes lost two or more lines of vision by the time of the last follow-up examination. Follow-ups ranged from 3 to 48 months, with a median follow-up of 15 months. The most common cause of decreased visual acuity was chronic macular edema that had developed following laser treatment, occurring in 14 (8%) eyes. The causes of visual loss following panretinal photocoagulation are discussed.
mesh_terms: D003930:Diabetic Retinopathy / Q000601:surgery*; D005451:Fluorescein Angiography; D005500:Follow-Up Studies; D006801:Humans; D053685:Laser Therapy; D007834:Lasers; D011183:Postoperative Complications / Q000209:etiology; D012306:Risk; D014786:Vision Disorders / Q000209:etiology*; D014792:Visual Acuity