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biological

Judged: two independent readers; copy check clear.

choked disk

choked disk Choked disk is swelling of the optic disk, most often linked to increased pressure inside the skull.

Choked disk is swelling of the optic disk, most often linked to increased pressure inside the skull. It can involve redness, blurred disk edges, small hemorrhages, enlargement of the blind spot, and swollen retinal veins, and if it continues over time it may lead to optic atrophy and vision loss.