Health Fusion: Summer screen time and your child's risk of eye problems

Relaxed summertime schedules may mean that kids have more screen time than they do during the school year. But only half of all parents recognize that excessive time spent staring at digital devices may be hurting their kids' eyes. In this episode of NewsMD's "Health Fusion," Viv Williams shares details from a recent poll, plus what the eye issues are and what parents can do to avoid them.