NCIt definition : Swelling around the optic disc, usually due to increased intracranial pressure or
pressure on the optic nerve by a tumor.;
Alternative definition : NCI-GLOSS: Swelling around the optic disk, the area where the optic nerve (the nerve
that carries messages from the eye to the brain) enters the eyeball. Papilledema occurs
when increased brain pressure caused by tumors or other problems results in swelling
of the optic nerve.; CTCAE: A disorder characterized by swelling around the optic disc.; NICHD: Swelling of the optic disc secondary to increased intracranial pressure.;