to compare the refractive and visual outcomes and higher order aberrations in patients with low to moderate myopia who underwent customized photorefractive keratectomy (prk) or femtosecond laser in situ keratomileusis (femto-lasik) this study performed this research includes data of 120 consecutive eyes of 60 patients with myopia between -3.00 d and -7.00 d with or without astigmatism in two s...