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Your eye will be numbed with anesthetic drops, and you'll lie down for the procedure. The surgical team will place a speculum over your eye to hold it open -- this sounds uncomfortable but normally isn't -- and you'll be asked to look at a target light while the doctor operates. Try to maintain your focus on this light -- it's important for getting the best results from the surgery. Many clinics find it helps to give the patient a stuffed toy or other object to hold onto during the surgery.
The actual PRK laser eye surgery takes less than a minute. The laser will probably make clicking sounds during the procedure, and you may smell a faint acrid odor. This is normal.