Factors associated with visual function among computer-based administrative workers: a Brazilian cross-sectional study.

Introduction: Several studies have shown that eye and vision problems are among the most significant issues reported by individuals who use computers at work.

Objectives: To investigate individual and occupational environmental factors associated with visual function among workers who perform computer-based administrative tasks.

Methods: This is a cross-sectional study conducted in 2014-2015 with 303 workers of a public hospital in the city of São Paulo, Brazil. The participants answered a structured questionnaire, including the 25-Item National Eye Institute Visual Function Questionnaire. Statistical analyses used descriptive analysis, tests of association and multiple linear regression analysis.

Results: Most participants were female (61.1%); the mean age was 46.0 (standard deviation [SD]) ± 12.5, and approximately 91.7% of them reported wearing corrective lenses. Regarding visual function, the mean score at the 25-Item National Eye Institute Visual Function Questionnaire was 78.0, SD ±7.1. A regression analysis showed that visual function declined with age (ß -0.218; 95%CI -0.276--0.16l) and effort at work (ß -0.656; 95%CI -0.928--0.383).

Conclusions: The mean quality of visual health in the studied group was good. The younger the age and the lower the effort at work, the better the visual function. Our results point to the relevance of establishing periodical and preventive health actions, including eye health assessments.