Construction of Risk Model of Xerophthalmia After Pterygium Excision

You Guangyan; Liu Decheng

doi:10.3969/j.issn.1004-5775.2025.06.003

Abstract：Objective:To establish and validate the risk model of xerophthalmia after pterygium excision.Methods:218 patients with pterygium resection from March 2020 to January 2023 were selected and followed up for 12 months.According to the occurrence of dry eye after pterygium resection,they were divided into occurrence group and non-occurrence group.The risk model of dry eye after pterygium excision was constructed and validated.Results:After 12 months of follow-up,218 patients were not lost to follow-up,and 48 patients developed dry eye(22.02%).The proportion of age,sclera exposed area,daily visual display terminal use time≥2 h in the occurrence group was higher than that in the non-occurrence group,the daytime outdoor activity time was longer than that in the non-occurrence group,BUT time was shorter than that in the non-occurrence group,the differences were statistically significant(t=5.720,10.332;χ2=20.687;t=6.252,3.161;P＜0.05).Logistic regression analysis showed that age,exposed sclera area,single-day visual display terminal use time and BUT time were the influencing factors for the occurrence of dry eye after pterygium resection(OR=4.749,5.339,4.225,0.260;P＜0.05).The sensitivity,specificity and AUC of the nomogram model for predicting the occurrence of dry eye after pterygium resection were 91.67%,90.59%and 0.913.Conclusion:Older age,larger sclera exposed area,longer BUT shorter duration of single-day visual display terminal are associated with the risk of dry eye after pterygium excision.The construction of a nomogram model is helpful for early screening of the risk of dry eye after pterygium excision.