Apparently, a simple photo with a cell phone's flash can be useful to diagnose what affects more people than was once realized. To that end, Maria Elisa Scarale, a Turin ophthalmologist specializing in eye movement disorders, offered information about a widespread condition in a recent interview. She outlined that strabismus is often misdiagnosed and therefore not always taken care of properly. Often it can cause other problems, such as headaches, double vision, or the abnormal posture of the head known as torticollis. In her experience, many patients have become aware they had the disorder while watching a 3D movie, just by realizing that they can't see it clearly.