I have had migraines and neck pain my whole life. I have always tilted my head, all day long. I never imagined these conditions were related to my vision! While in PT for neck pain and headaches, my PT noticed my head tilt and suggested I do an online assessment for Binocular Vision Dysfunction… I scored a 49, and the office called me… the testing proved that I needed prism lenses and when I got my glasses I was AMAZED at how well I could see. I have never seen so clearly, ever! My neck pain and headaches are greatly reduced, and I am so grateful!