Purpose. To investigate changes in optical coherence tomography parameters in morbidly obese patients who had undergone laparoscopic sleeve gastrectomy (LSG).Methods. A total of 41 eyes of 41 morbidly obese patients (BMI ≥ 40) who had undergone LSG were included in study. The topographic optic disc parameters, central macular thickness (CMT), total macular volume (TMV), and retinal ganglion cell layer (RGCL) were measured by spectral-domain optical coherence tomography (SD-OCT). Subfoveal choroidal thickness (SFCT) was measured by enhanced deep imaging-optical coherence tomography (EDI-OCT).Results. The mean CMT was μm, μm, and μm preoperatively, 3 months postoperatively, and 6 months postoperatively, respectively (). The mean TMV was mm3, mm3, and mm3preoperatively, 3 months postoperatively, and 6 months postoperatively, respectively (). The mean RGCL was μm, μm, and μm preoperatively, 3 months postoperatively, and 6 months postoperatively, respectively (). The mean SFCT wasμm, μm, and μm preoperatively, 3 months postoperatively, and 6 months postoperatively, respectively (). No statistically significant differences were found between the preoperative values and 3- and 6-month postoperative values in rim area (), disc area (), vertical cup/disc ratio (), cup volume (), or retinal nerve fiber layer ().Conclusions. Morbidly obese patients who undergo LSG experience a statistically significant increase in CMT, TMV, SFCT, and RGCL at 3 months and 6 months after surgery.