fitted on K

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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.
References in periodicals archive ?
Of course, during an assessment, the pre-reg will probably only have a selection of trial lenses to choose from so, unless they are lucky, they are not likely to get 6/6vision, or an alignment fit.
Of course, during your assessment you will probably only have a small selection of trial lenses to choose from so, unless you're lucky, you aren't likely to get 6/6 vision or an alignment fit.
First of all, central fit is assessed for a light feather touch at the apex of the cone and the rest of the pattern as close to an alignment fit as possible (Figure 3).
This alignment fits perfectly with our strategy at ACTV8.