• Five patients with a clinical diagnosis of buried or exposed drusen of the optic nerve head were examined by computerized tomography (CT). The relative x-ray absorption within their nerve heads was significantly larger than in controls, reflecting the high calcium content of drusen. Computerized tomography, and particularly high-definition CT, therefore merits consideration in the investigation of disc swelling.
Frisén L, Schöldström G, Svendsen P. Drusen in the Optic Nerve HeadVerification by Computerized Tomography. Arch Ophthalmol. 1978;96(9):1611-1614. doi:10.1001/archopht.1978.03910060245011