Computed tomographic diagnosis of buried drusen of the optic nerve head.

We present three patients with optic nerve drusen. On the basis of headaches, transient obscurations of vision, or visual field loss the patients underwent orbital computed tomographic (CT) scanning. This procedure confirmed the presence of buried drusen in the four optic discs that had yielded poor ophthalmoscopic and angiographic evidence of drusen; drusen had been observed in the other two discs. The indications for CT scanning in the presence of visible or buried drusen of the optic nerve head are discussed.