How face mask usage duration and type affect tear break-up time (TBUT): A survey of health professionals at Sanglah Hospital Denpasar

Background: As society adapts to the new normal during Corona Virus Disease 2019 (COVID-19) pandemic, face masks have become one of health protocols required in community, especially among professionals. Wearing a mask regularly for an extended period may lead dry eye symptoms, which cause discomfort and affect quality life. This study aimed determine association between usage duration type with tear break-up time (TBUT) reduction professionals at Sanglah Hospital Denpasar. Methods: cross-sectional analytic was conducted from December 2021 January 2022. A simple cluster random sampling method used obtain 107 who wore masks, aged 21-55 years old, were qualified both inclusion exclusion criteria. The data collected using questionnaire TBUT test. chi-square test multiple logistic regression analysis performed association. p<0.05 significant. Results: experienced by 30 subjects (29%) after wearing average about 6±4 seconds. ≥6.5 hours per day significantly increased risk 2.708 times higher than <6.5 (AOR 2.708; 95% CI 1.099-6.673; p=0.027). Using non-N95 4.545 N95 4.545, 95%CI 0.556-37.135; p=0.125). Conclusion: There reduction.