Visual evoked response as an aid in diagnosing optic nerve head drusen: case report.

In an 11-year-old girl suffering from decreased vision in he right eye, drusen of the optic nerve head were revealed by ophthalmoscopy and fluorescein angiography in this eye. The fellow eye had good vision and looked normal ophthalmoscopically. An abnormal VER led to further investigation, and asymptomatic buried drusen of the optic nerve head were confirmed by fluorescein angiography.