Walsh & Hoyt: Pseudopapilledema Associated with Optic Disc Drusen

The word drusen, of Germanic origin, originally meant tumor, swelling, or tumescence. According to Lorentzen, the word was used in the mining industry approximately 500 years ago to indicate a crystal-filled space in a rock. Drusen of the optic disc were first described clinically by Liebreich in 1868. Other terms for these lesions include hyaline bodies and colloid bodies of the optic disc