It has been my experience that many of the devices for the training of squinting eyes are too complicated for children of preschool age or that they fail to hold the child's attention for a sufficient time to make the exercises worth while. The importance of developing the coordination of movements of the hands and eyes has long been recognized in the training of these patients. Exercises to stimulate correct orientation and projection are of fundamental importance, but most of the exercises are based on the supposition that the child can handle a pencil. A large percentage of children are unable to acquire the ability to hold a pencil for tracing exercises before the age of 4 or 5 years. Unless the child has acquired a considerable