‘No Touch’ PRKAll-Laser Surface Procedure
The ‘No Touch’ PRK procedure, which London Eye Centre developed, is considered to be the most advanced version of surface treatment. Unlike the conventional LASIK method, no cutting is involved; in fact, no mechanical instruments touch the eye. At present, patients with virtually any degree of myopia (nearsightedness), hyperopia (farsightedness, up to +6), or astigmatism can be treated. Modifying the curvature or shape of the cornea is accomplished by vapourizing a small amount of tissue using the Excimer laser. The laser allows molecular quantities of corneal tissue to be removed with extreme precision, where the amount removed is less than half the thickness of a human hair.
The Day of Your Procedure
On the day of your procedure, you will be at the clinic for about 90 minutes. After a second thorough measuring of your eyes and a consultation with your surgeon, your eyes will be numbed using only drops, and every step of the procedure will be explained in detail so you'll know exactly what to expect. Once you're in the treatment room, you're fitted with a small device to keep you from blinking and no other instruments are needed. Surface skin cells on the eye, called epithelium, are removed, and then the laser reshapes the underlying corneal tissue, creating a new curvature. The procedure time, in its entirety, is usually less than two minutes per eye. The surface layer usually takes three to five days to heal. Although blurriness is expected during initial healing, you'll notice some improvements in focusing almost immediately. After your surgery, you'll experience some dryness and you'll be more light sensitive than usual. This is normal, and will subside as your eyes heal.