RK and LASIK Laser Vision Correction are both procedures that correct refractive error by reshaping the cornea to allow light rays to properly focus on the retina. RK requires the use of a diamond blade to create radial incisions on the surface of the cornea. With LASIK, Dr. Caplan, Dr. McQueen, Dr. Doe, Dr. Sun, Dr. McCauley, Dr. Spengler, Dr. Yankelove, Dr. Canseco, and Dr. Cook reshape the cornea using cool waves of ultraviolet light that gently sculpt away nearsightedness, farsightedness and astigmatism with microscopic precision using the VISX Star Excimer Laser.