Aim: The aim of the study was to compare symptoms of ocular surface disease and the results of objective tests such as Shirmer's test and tear break up time test before and after phacoemulsification cataract surgery in patients without previous ocular surface disease. Study type: Prospective cohort longitudinal study Participants and Methods: The study included 30 patients of both sexes suffering from cataract and without previously present ocular surface disease, who underwent phacoemulsification cataract surgery. All patients completed ocular surface disease index questionnaire immediately before the surgery, one week and one month after the surgery. All patients underwent tear break up time test and Schirmer's test immediately before the surgery, one week and one month after the surgery. The difference between the results of ocular surface disease index questionnaire, Schirmer's test and tear break up time test before and after the cataract surgery were observed. Results: One week after phacoemulsification cataract surgery medians of the Schirmer's test (10 millimeters), tear break up time test (10 seconds) and the results of ocular surface disease index questionnaire (13,75) were significantly worse in comparison to pre-surgery. One month after phacoemulsification cataract surgery medians of the Schirmer's test (10 milimeters), tear break up time test (10 seconds) and the restults of ocular surface disease index questionnaire (12,50) were still significantly worse in comparison to pre-surgery. One week after surgery 20 (66,67 %) patients had at least one positive criterion for dry eye disease, while one month after the surgery 16 (53,33 %) of patients had at least one positive criterion for dry eye disease. Most patients had mild type of dry eye disease after surgery. Conclusion: After phacoemulsification cataract surgery results of Shirmer's test, tear break up time test and ocular surface disease index questionnaire were significantly worse than before the surgery.