Purpose: To assess Visual Display Terminal(VDT) exposure as a risk factor for paediatric Dry Eye Disease(DED). Methodology: In this cross
sectional study, children(5-15 years) from both urban and rural regions with VDT(computer,smartphone,television) exposure(1-2,3-4,>=5hours)
were enrolled. Dry eye evaluation was done using Ocular Surface Disease Index (OSDI) Questionnaire, Schirmer's without anesthesia,
Fluorescein-Tear lm Break-up Time(F-TBUT) and corneal , conjunctival uorescein staining as per Tear Film and Ocular Surface Society(TFOS)
Dry Eye Workshop II Guidelines 2017(DEWS II). DED diagnosis was based on OSDI grading(>=13) and objective tests(>=1 positive test).
Results: 315 children exposed to VDTwere selected for the study. Burning sensation and redness were the most common symptoms. Prevalence of
DED was observed to be 6.03%(19 children-38 eyes). Mean age and hours of VDT exposure was signicantly higher and hours of outdoor activity
and sleep signicantly lower in DED children compared to NON DED children(p<.05). Urban elder children had highest DED prevalence rate of
13.19% .Prevalence of DED in children using VDTfor 1-2 hours was .74%,3-4 hours was 28.57%, and >=5 hours was 47.83% (p=<.001). Children
with short hours of outdoor activity(<3hours) had DED prevalence of 24.62 % whereas children with longer outdoor activity(>=3 hours) showed
1.20% prevalence(p<.001). Children with less hours of sleep(<8hours) showed DED prevalence of 22.58% and those with longer hours(>=8
hours) of sleep had only 1.98% DED prevalence (p<.001). Conclusion: DED was found to be associated with elder age, longer hours of VDT
exposure , short hours of outdoor activity and sleep in VDTexposed children.
P108 Relationship between dry eye, lacrimation, and blinking in visual display terminal working
