Conductive Keratoplasty, or CK, restores near vision without compromising the ability to see distances. Patients say the minimally-invasive procedure is painless, and doctors say it's safe and quick.
The procedure does not use lasers or a scalpel. A thin probe applies radio-frequency energy to points around the cornea. The created heat increases the curvature of the cornea and thus increases the ability to see up close.
The procedure has few risks, but side effects include dry, scratchy eyes after the procedure and an induced astigmatism; both generally resolve quickly.
The procedure is usually only done on one eye and costs $1,500 per eye. Because the eyes continue to age, patients normally have to have the CK touched up after about three to five years.