RK leaves approximately a 3 millimeter central area of the eye untouched. These very fine incisions are designed to help flatten the curvature of the cornea, thereby allowing light rays entering the eye to properly focus on the retina. The number and length of incisions determines the degree of correction attained. These incisions are invisible to the naked eye and take only minutes to perform. This procedure weakens the structural integrity of the cornea unlike laser vision correction, and there are many patients that experience a large shift into hyperopia, which requires strong spectacles for near as well as far vision after the age of 40.
Glare can also cause post-operative complaints along with instability of one's vision.
Though it is rarely still practiced in North America, over the past 20 years, over one million myopic people worldwide have reduced their dependence on glasses and contacts through the use of Radial Keratotomy. A crosswise incision is made with a diamond blade to flatten the steepest part of the cornea. AK can be used in combination with RK to correct myopic astigmatism, or to correct astigmatism alone. Vision Corporation Copyright TLC Laser Eye Centers Inc. This site is designed and maintained by TLC Laser Eye Centers Inc . All contents of this site constitutes the property of TLC Laser Eye Centers Inc. and may not be copied, reproduced or distributed without prior written permission.