title: Multiple evanescent white dot syndrome and acute zonal occult outer retinopathies.
abstract: BACKGROUND
  Multiple evanescent white dot syndrome (MEWDS) is a rare, acute, multifocal retinitis located in the posterior pole. Patients with MEWDS may report photopsia, central scotoma, or decreased vision. Prodromal viral-like symptoms may be associated with this syndrome, but its etiology remains unknown. The condition is self limiting with a favorable prognosis for visual recovery within several weeks.
  
  
  METHODS
  A young, myopic, female patient presented with painless photopsia, scotoma, and subsequent vision loss secondary to MEWDS. The clinical appearance, differential diagnosis, and management of MEWDS are discussed.
  
  
  CONCLUSIONS
  Careful ophthalmoscopic and angiographic interpretation along with complete history taking are the keys to diagnosing MEWDS. Ancillary testing including electroretinogram, early receptor potential, and visual fields aid in the differential diagnosis. Once the diagnosis has been established, patient reassurance is appropriate in the management of this condition.
authors.affiliation: Northwest Eye Surgeons, Seattle, Washington 98133, USA. jlombardo@nweyes.com
authors.forename: James
authors.initials: J
authors.lastname: Lombardo
mesh_terms: D000208:Acute Disease; D000328:Adult; D003937:Diagnosis, Differential; D004596:Electroretinography; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D020795:Photophobia / Q000175:diagnosis; D012173:Retinitis / Q000150:complications* / Q000175:diagnosis*; D012607:Scotoma / Q000175:diagnosis; D013577:Syndrome