I recently had follow-up information on a patient whom I treated several years ago. This was an individual who after brain surgery could not walk straight and would walk into walls. She now works for a friend (who is the patient relating the information to me yesterday), has a drivers license and is in a wonderful state of mind. Before we helped to remedy the situation with glasses, she wasn't able to work, couldn't drive and was depressed. It's cases like this why I enjoy practicing so much.