keratoconus

< /ˌkɛr ə toʊˈkoʊ naɪ, -ni/. Pathology.

1. a degenerative condition characterized by conical protrusion of the cornea and irregular astigmatism.

n.

1. A conical protrusion of the center of the cornea caused by noninflammatory thinning of the stroma and usually affecting both eyes.conical cornea