Conductive Keratoplasty


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Conductive Keratoplasty

About NearVision CK®

Also Known as Conductive Keratoplasty

NearVision LogoAs you age, your eyes will go through various phases in life. One of the most drastic of the vision transitions today is for middle-aged people. Difficulty with reading vision rapidly declines. People often get worried when they go through this transition, especially if they have had excellent vision all of their life. The problem is even worse for nearsighted people as they make this transition. Not only will they continue to have nearsightedness, but now they will also develop presbyopia at the same time. Up until most recently, presbyopia had been treated with bi-focal glasses. With advancements in modern ophthalmology technology we can now help patients turn back the clock with reading or distance vision problems.

Since the topic of discussion has to do with the inability to read or focus on close objects we will explain a revolutionary near vision refractive correction technique that could help you see better. If you have experienced an age-related decline in near vision, a solution is available with a procedure called NearVision CK®. In 2004 the U.S. Food and Drug Administration (FDA) approved NearVision CK® for the treatment of presbyopia. Candidates for NearVision CK® are typically over 40-45 years of age and have been struggling with reading glasses. Simple activities like reading menus or signing credit card receipts becomes an issue that requires reading glasses.

1. Solving The Problem

NearVision CK® (Conductive Keratoplasty)

NearVision CK® is a promising option for patients with farsightedness or presbyopia. This is a revolutionary vision correction procedure that uses radiofrequency (RF) waves instead of a laser to reshape the contours of your eye. By changing the way your cornea directs light to the rest of your eye CK effectively treats the conditions known as hyperopia or presbyopia. CK involves no cutting of the eye.

NearVision CK® uses very accurate pulses of radiofrequency waves to reshape and steepen corneal tissue centrally, resulting in improved vision, especially for reading. Radio frequency is one of the modern medical world’s most advanced surgical technologies. It is routinely used in other procedures such as prostate cancer therapy, orthopedic surgery, and cardiovascular procedures.

2. The Procedure: NearVision CK®

What happens during the NearVision CK® procedure?

The NearVison CK® procedure is performed using a small probe, thinner than a strand of human hair, that releases radiofrequency (RF) energy. Instead of a scalpel or a laser, CK releases radiofrequency energy through a probe as thin as a strand of human hair, without cutting or removing tissue. After application of a topical anesthetic, radiofrequency energy is applied in a circular pattern to shrink small areas of corneal tissue. This circular shrinkage pattern creates a constrictive band (like the tightening of a belt), increasing the overall curvature of the cornea. The result is somewhat like wearing a bifocal contact lens.

The entire procedure takes about three minutes, and most patients report immediate positive results after NearVision CK®. After this type of eye surgery, there may be some mild discomfort, which can be alleviated with drops or analgesics. Shortly after having the NearVision CK® procedure patients will have better ability to focus on near objects without any drastic effect on distance vision. Patients should be advised that complete vision correction may take several weeks to manifest itself.

3. Candidates for CK

NearVision CK® Candidates

Not everyone is a candidate for NearVision CK®. Your vision correction specialist will conduct a series of diagnostic tests to determine if CK could help. NearVision CK® candidates are typically:

* Patients who use reading glasses.

If you think you might be a candidate for NearVision CK® please feel free to take our NearVision CK® Self-Evaluation TEST.

4. NearVision® CK Benefits

The actual procedure uses controlled radiofrequency waves (RF technology), instead of lasers or a blade, to change the shape of the cornea and bring close vision back into focus. NearVision® CK is laser-free and extremely safe: There is no cutting and no removal of tissue, however the procedure is not reversible.

FDA Clinical Data (courtesy of REFRACTEC.COM)

Refractec is the manufacturing company for NearVision® CK

Clinical study data to be presented show positive three-month post-operative results on a cohort of 60 patients ranging in age from 41 to 63 who had undergone NearVision® CK, including:


Alcon a Novartis Company Vistakon Essilor