The quality of life after Ultrasound Phacoemulsification Cataract Surgery and correlation with anterior segment surface changes Aim of the study: The research aims to investigate whether there is a difference in the outcome findings of the anterior ocular surface, as well as to examine whether there is a difference in visual acuity after ultrasonic cataract surgery between groups of patients with anterior ocular surface disease and subjects with normal anterior ocular surface findings. Study structure: Prospective study. Subjects and Methods: The study included 100 adult patients of both sexes who successively underwent ultrasound phacoemusification cataract surgery. Age, gender, slit lamp examination, fluorescein test, TBUT and the best corrected visual acuity (eng. BCVA) were performed to each patient on the day of cataract surgery and 30 days postoperatively. In a normal report of a tear film, TBUT values greater than 10 seconds and a negative fluorescein test are indicated, while the diagnosis of dry eye is defined by a positive fluorescein test and a TBUT value lower than 5 seconds.The difference in tear film measurement and BCVA before and 30 days after cataract surgery was investigated. Results: Significant improvement in best-corrected visual acuity was observed postoperatively (Wilcoxon test, P < 0,001); however, significantly lower postoperative values of the tear film breakup time test were noted (Wilcoxon test, P = 0,02) as well as higher frequency of positive fluorescein test findings compared to before procedure (McNemar – Bowkerov test, P < 0,001). The absence of blepharitis is recorded in 53 % of participants, while severe blepharitis is noted in 5 % of participants after surgery. A significantly higher number of participants from the dry eye group expressed dissatisfaction with their quality of life after the procedure, whereas participants with normal findings are satisfied with their quality of life. (Fisher test, P < 0,001). Conclusion: Visual acuity significantly improved after surgery; however, there was a deterioration in tear film quality which was associated with subjective dissatisfaction of postoperative quality of life.