Abstract:Objective To analyze the risk factors for corneal ulcer after pterygium excision.Methods A total of 153 patients who underwent pterygium excision in our hospital from May 2017 to March 2022 were selected and the incidence of postoperative corneal ulcer was analyzed. The patients with corneal ulcers were set as the occurrence group and the others as the non-occurrence group. The general data of the two group were compared, and the risk factors for corneal ulcer after pterygium excision were analyzed by multivariable Logistic regression models.Results Among 153 patients undergoing pterygium excision, 30 patients with postoperative corneal ulcer were included as the occurrence group, and the other 123 patients were included as the non-occurrence group. Compared with the non-occurrence group, the proportions of diabetes mellitus, recurrent pterygium, non-standard surgical technique, loose corneal suture and irrational application of steroids in the occurrence group were higher (P < 0.05). Multivariable Logistic regression analysis demonstrated that diabetes mellitus [O^R = 2.678 (95% CI: 2.013, 3.343) ], recurrent pterygium [O^R = 2.280 (95% CI: 1.659, 2.900) ], non-standard surgical technique [O^R = 7.036 (95% CI: 4.152, 9.919) ], loose corneal suture [O^R = 3.466 (95% CI: 2.632, 4.300) ] and irrational application of steroids [O^R = 5.217 (95% CI: 3.021, 7.414) ] were all risk factors for corneal ulcer after pterygium excision (P < 0.05).Conclusions Diabetes mellitus, recurrent pterygium, non-standard surgical technique, loose corneal suture and irrational application of steroids are all risk factors for corneal ulcer after pterygium excision. Therefore, targeted measures can be taken to reduce the incidence of postoperative corneal ulcer in clinical practice.