The books purpose is to explain the correlation between ADD and vision problems. If you look at the symptoms for ADD and the symptoms for vision problems you will find that the list's are almost identical. The problem is most vision professionals do not test kids vision at the reading distance and these issues go undetected. This book will explain what is happening, why it's happening and how to find the professionals who can help.
It explains why "20-20 vision" is a myth and why current vision testing in the schools fails because it identifies only a small percentage of the children who are failing at reading and learning due to their undetected vision problems.
These definitions put acuity in its proper place. It is only the beginning of the visual process which results in foresight; imagination; a much greater whole.
Much of the vision care field bases its testing and therapy on the camera model of the eye and thus tests acuity at 20 feet, identifies "eye defects" that result in lowered clarity and then compensates for the defects (not correct them) with lenses. This has been the basis of vision care since the beginning of the profession.