title: Visual evoked potentials in early diagnosis of demyelinating diseases--a case report of Devic's disease.
abstract: BACKGROUND
  Devic's disease, also known as neuromyelinitis optica (NMO), is a severe, rare demyelinating disorder, previously considered to be a form of multiple sclerosis (MS). The aim of this study was to present the case report of 21-year-old woman with a very early diagnosis of Devic's disease, established following electrophysiological testing.
  
  
  METHODS
  A 21-year-old woman was referred to Warsaw Medical University, Department of Ophthalmology, with subjective visual impairment. The patient underwent a full clinical examination, colour vision and Goldmann visual field testing, fluorescein angiography, OCT, multifocal ERG, and visual evoked potentials (VEPs).
  
  
  CONCLUSIONS
  Visual evoked potentials are a very useful diagnostic tool in optic nerve neuropathies. In our patient, the electrophysiological testing allowed us to establish a proper diagnosis very early, before typical clinical signs of Devic's disease.
authors.affiliation: Department of Ophthalmology, Warsaw Medical University, Warsaw, Poland.
authors.forename: Ewa
authors.initials: E
authors.lastname: Langwińska-Wośko
authors.forename: Kamil
authors.initials: K
authors.lastname: Szulborski
authors.forename: Karina
authors.initials: K
authors.lastname: Broniek-Kowalik
mesh_terms: D005074:Evoked Potentials, Visual / Q000502:physiology*; D005260:Female; D006801:Humans; D009471:Neuromyelitis Optica / Q000175:diagnosis* / Q000503:physiopathology*; D055815:Young Adult