Usually associated with an increase in intraocular pressure

• Swelling of the optic disc (where the optic nerve enters the eyeball)

Wiktionary Word definitions in Wiktionary
n. (context medicine English) A swelling of the optic disc caused by intracranial pressure

Wikipedia Word definitions in Wikipedia
Papilledema (or papilloedema ) is optic disc swelling that is caused by increased intracranial pressure . The swelling is usually bilateral and can occur over a period of hours to weeks. Unilateral presentation is extremely rare. Papilledema is mostly seen ...

WordNet Word definitions in WordNet
n. swelling of the optic disc (where the optic nerve enters the eyeball); usually associated with an increase in intraocular pressure

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
also papilloedema , 1908, from papilla + edema .