As it is commonly believed, staring into the depths of your computer for hours on end is not entirely beneficial to your eye's health. However until this study, done by Kathryn Rose, a leading international researcher of visual disorders at the University of Sydney's Faculty of Health Sciences, it was not conclusive. However, now there is definitive results on her side. The study found that children need 10-14 hours outside per week in addition to what time they spend outside during school.