title: [Chance discovery of a unilateral bull's eye maculopathy].
abstract: METHODS
  We report the case of a diabetic twenty-five-year-old male with an asymptomatic bull's eye maculopathy in the left eye who was diagnosed by chance in a routine examination. The electrophysiological test showed a right eye photopic electroretinogram at the lower limit of normality.
  
  
  CONCLUSIONS
  In the presence of a bull's eye maculopathy we must rule out several pathologies like degenerative diseases, drug toxicity, previous trauma and infectious -- inflammatory diseases. Electrophysiology as well as family and personal history can help us to differentiate between several diseases though in our case the cause was unknown.
authors.affiliation: Hospital Universitario 12 de Octubre, Madrid, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Suárez Baraza
authors.forename: E
authors.initials: E
authors.lastname: López Tizón
authors.forename: S
authors.initials: S
authors.lastname: Suárez Parra
mesh_terms: D000328:Adult; D004596:Electroretinography; D005451:Fluorescein Angiography; D005654:Fundus Oculi; D006801:Humans; D008266:Macula Lutea / Q000473:pathology; D008297:Male; D012164:Retinal Diseases / Q000175:diagnosis*; D014792:Visual Acuity
vernacular_title: Hallazgo casual de una maculopatía en "ojo de buey" unilateral.