Cambridge Institute for Better Vision, 1998. — 223 p.
The Program for Better Vision is a comprehensive, easy to follow system for improving your vision, in just 20 minutes a day. It's a comprehensive system combining eye exercises, muscle control techniques, body relaxation and guided visualization. The step-by-step series of vision improvements sessions are easy to learn and take just minutes a day. The work includes tips on nutrition for eye health and good use of glasses.