Priyanga Ranasinghe|Wasundara S. Wathurapatha|Yashasvi S Perera|Dilusha A Lamabadusuriya|Supun Kulatunga|N.W.I.A. Jayawardana|Prasad Katulanda
Computer vision syndrome among computer office workers in a developing country: an evaluation of prevalence and risk factors
University of Colombo|University of Colombo|Ministry of Health, Nutrition and Indigenous Medicine|Ministry of Health, Nutrition and Indigenous Medicine|Ministry of Health, Nutrition and Indigenous Medicine|Ministry of Health, Nutrition and Indigenous Medicine|University of Colombo
computer vision syndrome cvs group visual symptoms experienced relation use computers nearly 60 million people suffer cvs globally resulting reduced productivity work reduced quality life computer worker present study aims describe prevalence cvs associated factors among nationallyrepresentative sample sri lankan computer workers two thousand five hundred computer office workers invited study nine provinces sri lanka may december 2009 selfadministered questionnaire used collect sociodemographic data symptoms cvs associated factors binary logistic regression analysis performed patients presence cvs dichotomous dependent variable age gender duration occupation daily computer usage preexisting eye disease using visual display terminal vdt filter adjusting brightness screen use contact lenses angle gaze ergonomic practices knowledge continuousdichotomous independent variables similar binary logistic regression analysis performed patients severity cvs dichotomous dependent variable continuousdichotomous independent variables sample size 2210 response rate884 mean age 308 81 years 508 sample males 1year prevalence cvs study population 674 female gender 128 duration occupation 107 daily computer usage 110 preexisting eye disease 449 using vdt filter 102 use contact lenses 321 ergonomics practices knowledge 124 associated significantly presence cvs duration occupation 104 presence preexisting eye disease 154 significantly associated presence severe cvs sri lankan computer workers high prevalence cvs female gender longer duration occupation higher daily computer usage preexisting eye disease using vdt filter use contact lenses higher ergonomics practices knowledge associated significantly presence cvs factors associated severity cvs duration occupation presence preexisting eye disease