Meaning of keratectasia | Babel Free

Definitions

An abnormal bulging of the cornea due to thinning and scarring.

countable, uncountable

Examples

“We present⟳ a case of unilateral iatrogenic keratectasia developing 10 months after bilateral laser in situ keratomileusis (LASIK) involving enhancement surgery using a broad-beam excimer laser (Summit Apex) to treat⟳ 6.6 diopters (D) of myopia.”

“A clinical diagnosis of keratectasia can be suspected when a patient develops unstable vision associated with irregular astigmatism. It usually occurs 6 to 18 months after LASIK surgery, but it may occur⟳ at any time.”

“Increased negative keratometric diopters and oblate asphericity of the PCC are common after LASIK leading to mild keratectasia.”

“The minimum thickness of residual stroma to prevent⟳ ectasia should be 250 mm. However, some unknown factors can still be responsible for iatrogenic keratectasias.”

CEFR level