Dyslexia is usually diagnosed at early ages, but it depends on the severity of an individual case. Find out why some children are diagnosed later in their schooling while others are diagnosed early on with tips from a recognized scholar of dyslexia treatment in this free video on learning disabilities. Expert: Dr. Diane Sawyer Contact: dyslexia.mtsu.edu Bio: Dr. Diane J. Sawyer is the holder of the Chair of Excellence in Dyslexic Studies and an internationally recognized scholar in the field of reading. Filmmaker: Dimitri LaBarge