title: Acute monocular visual loss secondary to anterior communicating artery aneurysm in a patient with sickle cell disease.
abstract: A patient with sickle cell disease had acute monocular visual loss with no visible vitreal or retinal abnormalities. A large aneurysm of the anterior communicating cerebral artery was found, with direct compression of the optic nerve. This represents a very rare presentation of a relatively common lesion. Consideration should always be given to compressive lesions as the cause of acute monocular visual loss in the absence of visible vitreal, retinal, or optic nerve disease.
mesh_terms: D000208:Acute Disease; D000328:Adult; D000755:Anemia, Sickle Cell / Q000150:complications* / Q000503:physiopathology; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000503:physiopathology; D008297:Male; D008580:Meningism / Q000209:etiology / Q000503:physiopathology; D014786:Vision Disorders / Q000209:etiology* / Q000503:physiopathology; D014792:Visual Acuity; D014794:Visual Fields