CK (Conductive Keratoplasty)

CK to Treat Your Astigmatism and Enhance Your Vision

CK uses gentle heat on the cornea to target and reduce your astigmatism.

CK for astigmatism is a painless, 5 minute technique aimed to improve your astigmatism. CK uses radiofrequency energy to gently heat the peripheral cornea. This results in a pull against the astigmatism thereby reducing it and improving vision. The CK spots are customized for your amount of astigmatism.

CK was originally approved to correct farsightedness and reading glasses in patients over 40 years old. We use CK in a different manner to handle astigmatism in patients of any age.

CK is typically performed right after Intacs®. A “real time” CK adjustment technique is used in this case. After the Intacs® are inserted, the CK process is begun with a select number of spots. Another topography map of the cornea is then taken to see how much astigmatism was improved. This topography helps immediately determine how many more CK spots to place and the location to place them. Then the additional CK is performed. Sometimes this is done a couple of times until the targeted end result is achieved. At that point, Corneal Collagen Crosslinking with Riboflavin is done to “lock in” the CK and stabilize the keratoconus at the same time. It is important to note that to reduce likelihood of CK regression, CK should be performed either with Corneal Collagen Crosslinking with Riboflavin on the same day or on a cornea previously treated with Corneal Collagen Crosslinking with Riboflavin.

The figures above show over 8 diopters of astigmatism correction before (left) and after CK combined with Intacs® was performed (right) in one patient.

The figures above show another patient who experienced over 4 diopters of astigmatism reduction before (left) and after CK with Intacs® (right).

CK provides an important tool to manage astigmatism in patients with keratoconus and keratoectasia. CK can be combined with Intacs® to enhance results achieved with Intacs® alone in patients with high astigmatism.

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