Abstract
Using the ArF excimer laser to alter corneal tissue is now applicable to the field of ophthalmology. For the treatment of corneal scarring or corneal dystrophy, phototherapeutic keratectomy (PTK) may be performed, and photorefractive keratectomy (PRK) or laser in situ keratomileusis (LASIK) is useful to treat refractive errors such as myopia, hyperopia, or astigmatism. A videokeratoscope and wavefront sensor are useful for the evaluation of corneal topography and the quality of vision following refractive surgery.
