Dr. Duffey performs Conductive Keratoplasty (CK) for farsighted and presbyopic patients who desire a fast, convenient and comfortable in-office alternative to laser refractive surgery. CK utilizes radiofrequency (RF) energy applied to the outer aspects of the cornea to change the central corneal curvature. This is a no-laser, no-cutting procedure with an excellent margin of safety.

Radiofrequency (RF) probe being gently applied to peripheral cornea following anesthetic eye drops.	Appearance of "weld spots" on peripheral cornea at completion of CK.	Induced corneal curvature change to central cornea from peripheral "purse-string" effect of CK.

CK has been in U.S. clinical trials and used worldwide for many years. It was approved by the FDA in the US on April 12, 2002. Healing time is rapid with most patients returning to work the following day. The FDA approval is for patients suffering from +0.75 to +3.00 diopters of hyperopia. The FDA reports that the magnitude of correction with this treatment diminishes over time with some patients retaining some, or all, of their intended refractive correction. One or both eyes can be operated upon at the same surgical setting, depending upon patient preference. When done for presbyopia (the loss of reading vision after age 40), CK is typically done on the non-dominant eye. Therefore only one eye is required to have surgery for presbyopia, cutting the expense and risk in half.