pgmrdlm shares a report from StudyFinds: So many people, especially young people and teenagers, spend a significant period of time each day staring at a screen of some kind, whether that be a computer, smartphone, tablet, or the regular old TV. Now, a new study is warning parents that all that screen time may be behind a stunning rise in children who need prescription glasses. According to the report released by United Kingdom-based eye care company Scrivens Opticians, the percentage of 13-16 year olds in the U.K. who need glasses has nearly doubled over the past seven years — from 20% in 2012 to 35% in 2018. Two-thirds of those teens were diagnosed as being myopic, or short-sighted. Researchers theorize that this significant increase in eye problems among young people is likely linked to excessive time spent staring at screens, which can lead to eye strain, shortsightedness, and blurred vision. In fact, the study also found that the average 13-16 year old spends around 26 hours per week staring at a smartphone, playing video games, or watching TV.