keratoconus

[ ker-uh-toh-koh-nuhs ]

noun

, Pathology.

, plural ker·a·to·co·ni [ker-, uh, -toh-, koh, -nahy, -nee].

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

Word History and Origins

Origin of keratoconus¹

1855–60; kerato- + Latin cōnus cone

Example Sentences

Keratoconus is a condition where the cornea starts to lose collagen, growing thinner and cone-shaped and eventually impairing vision.

From Singularity Hub 

Surgeons in Iran and India conducted a pilot trial of 20 people who were either blind or close to losing their sight from advanced keratoconus.

From MIT Technology Review