LASIK
Pronunciation: LAY-zik
Also written as: LASIK — Laser-Assisted In Situ Keratomileusis
Laser-assisted in situ keratomileusis; a refractive surgery using laser energy to reshape the cornea.
Full Definition
LASIK is a two-step refractive surgical procedure combining mechanical and laser techniques to correct myopia, hyperopia, and astigmatism. A microkeratome or femtosecond laser creates a thin corneal flap, which is lifted to expose the underlying stroma. An excimer laser then precisely removes corneal tissue according to a predetermined pattern to alter the eye's refractive power. The flap is repositioned without sutures, adhering naturally through the cornea's healing response.
Usage
Usage note: Always written in capital letters as it is an acronym; distinguish from similar procedures like LASEK and PRK.
In Context
- "LASIK candidacy was confirmed after comprehensive refractive evaluation and corneal topography." — Pre-operative assessment
- "Post-LASIK dry eye symptoms typically resolve within three to six months." — Patient counseling documentation