choked disk

choked disk (chkt)

n.

See papilledema.

---

choked disk Ophthalmology Papilledema with swelling of the optic nerve head, caused by ↑ intracranial pressure with edema-induced blurring of the disk margins and obliteration of the optic cup, elevation of the nerve head, capillary congestion, hyperemia, venous engorgement, loss of venous pulse, peripapillary exudates, retinal wrinkling, and punctate nerve fiber layer hemorrhage; if pressure is reduced, fundus returns to normal without loss of vision; ↑ intracranial pressure is due to meningoencephalitis, hemorrhage, metabolic disease, toxins, trauma, tumors. See Pseudotumor cerebri.