PT - JOURNAL ARTICLE AU - Sha’aban, Reham I. AU - Asfour, Wafa M. TI - Visual loss after coronary artery bypass surgery DP - 2000 Jan 01 TA - Saudi Medical Journal PG - 90--92 VI - 21 IP - 1 4099 - http://smj.org.sa/content/21/1/90.short 4100 - http://smj.org.sa/content/21/1/90.full SO - Saudi Med J2000 Jan 01; 21 AB - Anterior ischemic optic neuropathy is caused by microvascular occlusion of the prelaminar or laminar portion of the optic nerve head. The main types are arteritic, non-arteritic, and autoimmune. Few cases were reported following coronary artery bypass surgery. A 63-year-old man, who is both diabetic and hypertensive, underwent coronary artery bypass graft complicated postoperatively by sudden visual loss in his right eye. The diagnosis was non-arteritic anterior ischemic optic neuropathy. Possible predisposing factors were crowded disc and internal carotid artery stenosis.