[The characteristics of performing specialized laser keratomileusis after photorefractive keratectomy performed earlier in the correction of myopia]

Abstract

Ninety-four repeated refraction operations were performed by laser specialized keratomileusis (LASIK) after a previous photorefraction keratectomy in order to correct the complications (undercorrection and regression of the refraction result). LASIK operation can be performed no earlier than 12 months after the first operations if subepithelial corneal fleur develops; the fleur severity is to be about 0.5 points and the optimal thickness of corneal section is 180 mu. Causes of complications of reoperations are discussed. The majority of complications are due to corneal epithelium fixation after photorefraction keratectomy. Refraction and visual results of surgery are presented to characterize its efficiency.