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.
Main Entry: or·tho·kera·tol·o·gy Pronunciation: -'täl-&-jE Function: noun Inflected Form: plural-gies : a treatment for defects of vision by altering the shape of the cornea through the application of a series of differently shaped hard contact lenses