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Abstract Background The study aims to assess the tear film before and after phacoemulsification in patients with age-related cataracts. Methods A prospective observational study of 41 age-related cataract patients undergoing phacoemulsification procedure. Tear Film Break-Up Time (TBUT), Tear Film Meniscus Height (TMH), Meibomian glands (MG), and Lipid Layer Thickness (LLT) were assessed by a non-invasive Dry Eye Diagnostic System. All measurements were taken preoperatively, one week, one month, and three months postoperatively. The Marginal homogeneity and The Cochran Q tests were used in the statistical analysis. Results The value of Non-Invasive Break-Up Time (NITBUT) was statistically significantly lower at one week (7.15 ± 3.31), one month (7.61 ± 3.41), and three months (7.66 ± 3.36) postoperatively than preoperatively (10.71 ± 2.71), p |