Background
corneal nerve damage, LASEK, dry eye symptoms, LASIK
DRY EYE, DYSFUNCTION
Transient dry eye symptoms after laser keratorefractive surgery are common, and up to 95% of patients may have dry eyes at some time post laser-assisted in situ keratomileusis (LASIK) surgery [Laser-assisted sub-epithelial keratomileusis (LASEK) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK) are known to contribute to corneal nerve damage and dysfunction [In this study, VIP concentration, and the factors affecting VIP secretion in the tears of patients who underwent two surgical procedures were assessed. The factors influencing dry eye at different times post LASEK and FS-LASIK surgeries, and a possible correlation between dry eye and VIP concentration were analyzed. The purpose of this study is to explore the neural mechanisms contributing to dry eyes and provide a basis for future treatment strategies.