More than 70,000 Children and teens go to the emergency room each year for injuries and complications from Medical devices, and contact lenses are the leading culprit because of things things like infections and eye abrasions. Other common problems found were puncture wounds from hypodermic needles breaking off in the skin while injecting medicine or illegal drugs; infections in young children with ear tubes; and skin tears from pelvic devices used during gynecological exams in teen girls.