Laser-Assisted Subepithelial Keratectomy (LASEK)
Eximer Laser Photorefractive Keratectomry (PRK)
LASEK and PRK are similar procedures.
LASEK is a refractive surgery technique that combines the surface treatment of PRK with the added comfort of LASIK, without the potential complications of the LASIK flap. The surface skin of the cornea (the epithelium) is separated and moved aside before the surface treatment with the laser. The epithelial flap is then repositioned after the treatment to provide reduced pain and shorter a recovery time as compared to PRK.
PRK is a vision-correction procedure in which the excimer laser is used to change the curvature of the cornea to correct nearsightedness or farsightedness with or without astigmatism. PRK can reduce or eliminate the need for glasses or contact lenses. PRK with the VISX Laser was approved by the FDA in 1996 after the completion of trials that began in 1989. In PRK, the surface epithelial layer or the cornea is removed, then laser treatment is applied. Postoperatively, the healing of the epithelium typically takes four to six days, during which time the patient experiences blurry vision and discomfort.
Studies have shown that the current LASEK or PRK techniques are most effective in the treatment of nearsightedness from one to seven diopters. Studies have demonstrated that approximately 80 percent of eyes will see 20/20 one year after LASEK or PRK. Ninety-five to 98 percent of eyes will see 20/40 or better -- this is the level of vision required to drive without glasses in most states. Although complications may occur with any surgical procedure, LASEK and PRK have been shown to be safe and effective in the appropriate patients.
LASEK and PRK have been shown to be safe and effective in the appropriate patients.
LASEK and PRK may be an excellent choice for patients who have thin corneas and therefore are not ideal candidates for LASIK procedures.
For a complimentary consultation, please call the Refractive Surgery Center at 206-598-2020.