Acute visual field constriction in optic disc drusen: report of an unusual case.

We describe a case of an acute symptomatic and non-progressive visual field constriction in one eye of a 19-year-old female with optic disc drusen. The fellow eye showed slowly progressive visual field defects. A limited or retrolaminar infarction of the optic nerve head seems a plausible cause of the acute visual field loss. The slow progression in the fellow eye is most probably due to mechanical compression by the drusen. The case is documented with Humphrey perimetry during a follow-up of 11 years and with Color Doppler Imaging (CDI) of the optic nerve.