title: Visual loss "at stool".
abstract: A 25-year-old white man presented with a history of loss of consciousness and visual loss associated with a Valsalva maneuver. Examination revealed a visual acuity of "no light perception" in his right eye with a flat visual evoked potential. The patient was subsequently found to have a giant aneurysm of the anterior communicating artery which was treated by direct clipping via a transfrontal craniotomy. The patient slowly recovered good visual function in his right eye.
mesh_terms: D000328:Adult; D002533:Cerebral Angiography; D003672:Defecation; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000601:surgery; D008297:Male; D014057:Tomography, X-Ray Computed; D014786:Vision Disorders / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology*; D014787:Vision Tests