A vision training device, useful for improving hand-eye coordination activities, takes the form of eyewear having two red colored, translucent lenses, each lens containing a clear target sight positioned and dimensioned to allow a trainee to focus the image of an object onto the foveal vision areas of...http://www.google.es/patents/US5305027?utm_source=gb-gplus-sharePatente US5305027 - Method and apparatus for enhanced visual training
