[Chance discovery of a unilateral bull's eye maculopathy].
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.
Suárez Baraza
J
J
Hospital Universitario 12 de Octubre, Madrid, Spain.
López Tizón
E
E
Suárez Parra
S
S
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
Hallazgo casual de una maculopatía en "ojo de buey" unilateral.