ABSTRACT

The advantages of photorefractive keratectomy (PRK) are its precise predictability and reliable safety as a corrective procedure for low to moderate myopia (1,2). However, its predictability decreases in cases of high myopia, and its effects are limited by postoperative pain, corneal haze, and myopic regression (3). Laser in situ keratomileusis (LASIK) offers fast visual recovery with minimal postoperative discomfort. However, flap-wrinkling, epithelial ingrowth, diffuse lamellar keratitis, and iatrogenic keratoectasia may develop after surgery (4).