Photorefractive keratectomy (PRK), or ‘surface treatment,’ is a vision correction procedure, available in Indianapolis at Price Vision Group, in which the vision correction treatment is applied to the surface of the cornea.
PRK was the first vision procedure performed using the Excimer laser, and is still widely practiced today. It remains the procedure of choice for patients whose corneas are too thin to have LASIK.
PRK corrects your vision the same way LASIK does – by reshaping your cornea with an Excimer laser so light focuses directly on your retina. The difference is that with LASIK, a flap is created on the outer part of the cornea, and vision correction applied to the inner tissue of the cornea. With PRK, there is no flap. Instead, the surface cells of the eye, called the epithelium, are removed using an alcohol solution. The vision correction treatment is then applied to the outer surface of the cornea.
This epithelial layer eventually grows back, but the healing time is longer than with LASIK. However, the result is structural integrity that’s better than LASIK with a flap, and visual results that are just as good.