orthokeratology

[ awr-thoh-ker-uh-tol-uh-jee ]

/ ˌɔr θoʊˌkɛr əˈtɒl ə dʒi /

Save This Word!

noun Ophthalmology.

a technique for correcting refractive errors in vision by changing the shape of the cornea with the temporary use of progressively flatter hard contact lenses.

QUIZ

WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?

Smoothly step over to these common grammar mistakes that trip many people up. Good luck!

Question 1 of 7

Fill in the blank: I can’t figure out _____ gave me this gift.

who

whom

TAKE THE QUIZ TO FIND OUT

Origin of orthokeratology

First recorded in 1970–75; ortho- + kerato- + -logy

Words nearby orthokeratology

orthographic, orthographic projection, orthographize, orthography, orthohydrogen, orthokeratology, orthomolecular, orthomorphic, orthomorphic projection, orthonormal, Ortho-Novum