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How does conductive keratoplasty (CK) correct farsightedness?

Conductive keratoplasty (CK) is a noninvasive, thermal refractive surgical procedure used to correct mild to moderate farsightedness (hyperopia) in people over age 40. With CK, your ophthalmologist uses a tiny probe that releases controlled amounts of radio frequency (RF) energy, instead of a laser, to apply heat to the peripheral portion of the cornea. The heat then causes the peripheral cornea to shrink and to tighten like a belt. This increases the curvature (steepness) of the central cornea, improving the optical power of the central cornea. This refocuses light rays on the retina and enhances vision.

CK can be used to achieve “monovision” (“blended vision”). With monovision, CK can be used to improve close-up vision in a presbyopic eye with good vision but poor near focus. To maintain good distance vision, usually only one eye is set to near focus (the non-dominant eye), while the other is left or set at good distance vision. CK does not offer permanent correction; for some patients, farsightedness may return over time.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.