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Related to keratectasia: keratoconus
protrusion of a thin, scarred cornea.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A bulging forward of the cornea.
Farlex Partner Medical Dictionary © Farlex 2012
keratectasiaBulging of the CORNEA due to weakening from thinning or softening (KERATOMALACIA). In keratectasia there is a danger of rupture under the influence of the normal intraocular pressure and urgent measures are needed to avoid this. Sometimes a ‘bandage’ contact lens is used; more often a corneal graft is performed.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005