When you think of 3-D glasses, most of us think of a visit to the movies. But at Chicago's Northwestern Medicine, doctors are using the technology to get an in-depth look at the brain during surgery. CBS 2?s Suzanne Le Mignot reports. Northwestern Medicine neurosurgeon Dr. James Chandler holds a pair of 3-D glasses. Along with ear, nose and throat surgeon Dr. Robert C. Kern, he wears the special glasses while performing surgery to remove a brain tumor through patient Irina Murray's nose.