title: Acute optic neuropathy in Behçet disease.
abstract: OBJECTIVE
  To report a patient with Behcet disease presenting with acute optic neuropathy.
  
  
  METHODS
  A 47-year-old man was admitted to the authors' clinic owing to sudden visual loss in the left eye. Ophthalmologic and systemic examinations were performed.
  
  
  RESULTS
  Visual acuity was 4/10 in the left eye. Fundus examination demonstrated swollen optic disc with blurred margins. There was relative afferent pupil defect in the same eye. Mega-dose corticosteroid treatment was started with the diagnosis of acute optic neuropathy. Ocular findings resolved within 2 weeks.
  
  
  CONCLUSIONS
  Behçet disease rarely presents with acute optic neuropathy.
authors.affiliation: Department of Ophthalmology, School of Medicine, Ankara University, Ankara - Turkey. Yalcinda@medicine.ankara.edu.tr
authors.forename: N
authors.initials: N
authors.lastname: Yalçindag
authors.forename: N
authors.initials: N
authors.lastname: Yilmaz
authors.forename: O
authors.initials: O
authors.lastname: Tekeli
authors.forename: O
authors.initials: O
authors.lastname: Ozdemir
mesh_terms: D000208:Acute Disease; D001528:Behcet Syndrome / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy; D005451:Fluorescein Angiography; D005938:Glucocorticoids / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008775:Methylprednisolone / Q000627:therapeutic use; D008875:Middle Aged; D009898:Optic Disk / Q000473:pathology; D009901:Optic Nerve Diseases / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D010211:Papilledema / Q000209:etiology; D014786:Vision Disorders / Q000209:etiology; D014792:Visual Acuity
chemical_list: D005938:Glucocorticoids; D008775:Methylprednisolone