Photorefractive Keratotomy (PRK)
Definition - What does Photorefractive Keratotomy (PRK) mean?
Photorefractive keratectomy or keratotomy (PRK) is a type of surgery that addresses refractive errors of the eye, using laser technology. It's suitable for near- and farsightedness treatment, as well as astigmatism, allowing the patients to limit their use of eyeglasses or contact lenses, and, in some cases, to eliminate use completely. It cannot treat presbyopia.
TheConsultation explains Photorefractive Keratotomy (PRK)
PRK is ideal for people who have an active job or lifestyle — or in terms of ophthalmological assessment — they suffer from dry eyes or have a thin cornea. Any other type of refractive surgery would not be recommended. The procedure lasts about 15 minutes and it is usually performed under local anesthesia in an outpatient setting. Vision is blurry following surgery, but will improve over the next 3-5 days and, in about a month, patients experience their best overall eyesight. With PRK, vision will be improved but patients cannot be assured that it will be perfect. On rare occasions, there is over- or under-correction. Such complications can be easily treated with eyeglasses, contact lenses or corrective laser surgery.