Birt L
Nurs Times. 1995;91(44):30-1.
The technique of photorefractive keratectomy (PRK) represents a major development in ophthalmology. Using lasers, PRK involves reshaping the cornea so that its refractive power is increased. Currently PRK can only be used to correct myopia and astigmatism, but hypermetropia may also be corrected by PRK in the near future.
准分子激光角膜切削术（PRK）技术是眼科领域的一项重大进展。PRK利用激光重塑角膜，从而增加其屈光力。目前，PRK仅可用于矫正近视和散光，但在不久的将来，远视也可能通过PRK得到矫正。
