New research finds school-aged kids who spent 7 hours or more a week using computers or mobile video games tripled their risk for nearsightedness

New research finds school-aged kids who spent 7 hours or more a week using computers or mobile video games tripled their risk for nearsightedness​ https://t.co/UkdQIhMvuD pic.twitter.com/qP1XGzjFTN

— CBS News (@CBSNews) December 27, 2017