Vision therapy which reinforces, coordinates or improves eye function, especially during childhood. ( orthoptique, adj)
Orthoptics (from the Greek words ortho meaning "straight", and optikas meaning "vision" http://www.tcos.ca/about_orthoptics.html) is the discipline dealing with the diagnosis and treatment of defective eye coordination, binocular vision, and functional amblyopia by non-pharmaceutical and non-surgical methods, e.g., glasses, prisms, exercises.Cassin, B. and Solomon, S. Dictionary of Eye Terminology. Gainsville, Florida: Triad Publishing Company, 1990.