Dr. Clarke still performs the RK procedure. For over 30 years this technique has been used to reduce or eliminate low to moderate degrees of nearsightedness and astigmatism in millions of people. Using a hand held diamond blade; microscopic incisions are placed in a spoke-like or curvilinear pattern around the outer portion of the cornea to reshape its curvature. Again, as with the laser treatments the reshaping allows light rays to focus properly on the retina, reducing or eliminating nearsightedness and astigmatism. The incisions are invisible to the naked eye and the procedure only takes minutes to perform.