Evaluation of PVD exposure and its influence on visual fatigue in the administrative staff of a public hospital in Riobamba - Ecuador in 2023

Abstract

Widespread use of data display terminals (DUTs) in a work environment could represent a risk for developing ocular pathologies and dangers. One way to determine the presence and severity of these symptoms is through the CVSS17 questionnaire. In this study, visual symptoms were evaluated in the administrative staff of an Ecuadorian public hospital. The results indicate no association between visual symptoms and gender (contingency coefficient 0.085, p=0.83). A moderate but not statistically significant association was found between symptom intensity and age (contingency coefficient of 0.344, p=0.347). However, there is a statistically significant positive association between symptom intensity and type of contract (contingency coefficient 0.40, p=0.049, Cramer's Test V 0.3, p=0.049). Symptom severity is mild in 38% (95% CI 24.0% - 51.9%), followed by 34% of moderate symptoms (95% CI 20.4% - 47.6%), according to the percentages obtained in the CVSS17 questionnaire. It is suggested that visual hygiene be improved, the work environment optimized, and regular visual stimulation breaks established to prevent visual symptoms. These measures, assessed by the CVSS17 questionnaire, provide a healthier working environment.