Found in the following dictionaries
OTCWL2014 (NASPA Word List 2014)
"Keratomileusis" Definition
noun
Improvement of the refractive state of the cornea, performed by cutting a thin hinged flap in the front surface of the eye and lifting it to access the cornea.
Source: Wiktionary
in which a piece of the cornea is removed, frozen, shaped to correct refractive error, and reinserted .
Source: Merriam-Webster
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