Abstract
Context: Pterygium is a very common ocular surface disorder. Tear film dysfunctions have been reported in subjects with pterygium. Aim: We aim to study the correlation between pterygium and dry eye disease in patients with unilateral pterygium. Settings and Design: A case–control study of patients with unilateral pterygium was undertaken after ethical clearance from the institutional ethics committee. Subjects and Methods: Eighty-seven patients with unilateral pterygium were included in the study. Tear film break-up time (TBUT), Rose Bengal staining (RBS), and Schirmer’s test 1 were performed in both eyes of the patients. Test results were compared with contralateral normal eye of the same patient. Statistical Analysis Used: Data were analyzed using t-test and Chi-square test. P <0.05 was considered statistically significant. Results: The tear film function parameters, namely Schirmer 1, TBUT, and RBS in the study group, were statistically different as compared to the control group. The mean of TBUT was 8.19 ± 1.87 s in pterygium eyes and 11.83 ± 1.69 s in contralateral normal eyes. The mean of Schirmer’s 1 was 10.65 ± 3.69 mm in pterygium eyes and 16.37 ± 4.82 mm in contralateral eyes with no pterygium. Conclusion: There was a statistically significant difference in the values of tear film function between eyes with pterygium and contralateral normal eyes.
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