PURPOSE: This study aimed to investigate the effects of metabolic and bariatric surgery (MBS) on the corneal and anterior segment parameters of the eye. MATERIALS AND METHODS: In this study, the anterior chamber depth, volume, angle and central corneal thickness of obese patients who underwent laparoscopic sleeve gastrectomy surgery were prospectively examined using Pentacam topography before and six months after surgery. RESULTS: A total of 112 eyes of 56 individuals, including 26 males with a mean age of 38.88 ± 7.00 years and 30 females with a mean age of 40.94 ± 7.76 years, were evaluated (p = 0.310). Six months following MBS, the average body mass index (BMI) in men decreased from 45.5 kg/m CONCLUSION: This study revealed that anterior segment values, intraocular pressure, and corneal thickness may change after MBS. Caution should be exercised when evaluating for cataracts and refractive surgery after MBS.