Many parents have experienced the angst of a crying baby with an ear infection. Some 30 million medical visits in the U.S. alone are due to pediatric ear infections each year. A startup called CellScope has developed a device that could make such visits unnecessary. It connects to an iPhone and produces a view inside the ear magnified by a factor of 10. Users can capture and upload images to CellScope's Web platform. After adding notes about other symptoms, parents could ask their own doctor to conduct a remote exam. In most cases, that would be enough information for a prescription to be called in, says CellScope CEO Erik Douglas.