Association between Dry Eye Disease and Psychological Stress among Paramedical Workers in Korea

This study was performed to evaluate the prevalence and risk factors of dry eye disease (DED) among paramedical workers at a university hospital in Korea. This cross-sectional study included 566 paramedical workers at a university hospital in Korea. Dry eye symptoms were assessed using a 9-item questionnaire, and DED was defined as having 1 or more dry eye symptoms often or all the time. A survey including demographic data and potential risk factors of DED was also performed. Psychological stress was measured using stress VAS and perceived stress scale 4 (PSS-4) questionnaires. Of the 566 paramedical workers, 232 (35 male and 197 female) completed the survey. Prevalence of DED was 42.7% (99/232). Univariate analysis revealed that female sex (P < 0.001), prolonged computer use (P = 0.003) and higher stress VAS (P < 0.001) and PSS-4 (P = 0.009) scores had significant association with DED. In multivariate analysis, DED had significant association with female sex (P = 0.003) and stress VAS (P = 0.013) after adjustment for sex, duration of computer use and stress VAS, and had significant association with female sex (P = 0.003) and durations of computer use (P = 0.029) after adjustment for sex, duration of computer use and PSS-4 score. In conclusion, DED was prevalent among paramedical workers in Korea. Its risk increased among females and workers with increased psychological stress. Prolonged use of computer was possibly associated with DED.