Observation of therapeutic effects of different surgical methods in treating patients with pterygium and the tear film stability

AIM:To compare the therapeutic effects of different surgical methods of treating patients with pterygium and to observe tear film stability. METHODS:A total of 90 pterygium patients(90 eyes)were randomly divided into three groups, each 30 cases(30 eyes). The eyes in group A were treated with pterygium excision surgery; the eyes in group B were treated with 0.2g/L mitomycin-C and pterygium excision surgery intraoperatively; and the eyes in group C were treated with pterygium excision combined with self-corneal limbal stem cell transplantation. Data including Schirmer Ⅰ test(SⅠt), tear break-up time(BUT), conjunctiva fluorescein staining(CFS), and ocular surface disease index(OSDI)were recorded preoperatively and postoperatively to evaluate the clinical efficacy of surgery and the effects of tear function changes. RESULTS: There were no significant differences in BUT in group A before the operation and one month after operation. Group B and C showed significant difference before and after operation, but differences were not statistically significant(all PPPP>0.05). CONCLUSION: Pterygium excision combined with self-corneal limbal stem cell transplantation is an ideal surgical method in treating pterygium, and can partly restore the tear functions into normal state in patients with pterygium