fitted on K(redirected from alignment fit)
fitted on K
Refers to a contact lens in which the back optic zone radius is the same as that of the flattest meridian (or the mean of the two principal meridians) of the cornea. K is a symbol referring to the keratometer reading of the principal meridians of the cornea. Syn. alignment fit. See flat lens; steep lens.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann