Dr. Frank Navratil was born of Czech parents in Vancouver, Canada where he completed a degree in physiology and nutrition. In the 1990's he moved to Sydney, Australia where he studied alternative medicine, iridology and clinical nutrition before practicing as a naturopathic doctor, iridologist, and nutritionist. Since 1997, he has lived in Prague, the Czech Republic where he currently runs a natural therapy practice and directs the Return to Health International College of Natural Medicine. Frank has given countless lectures and seminars in Europe, America and Australia on the subject of iridology and nutrition. He has also appeared on several television and radio programs to talk about natural means of diagnosing and dealing with disease. His first book, "For Your Eyes Only" has been translated into several languages. He is the author of a number of article series on iridology and nutrition that have been published in natural medicine and health magazines around the world. He has worked, too, in Ethiopia where he studied the effects of malnutrition and has assisted an Ethiopian Aid agency to fund the development of an Education Center for the prevention of disease there. His practice and research is based on natural holistic methods that allow the body to heal itself. These include iridology, nutrition, vitamin and mineral treatment, Bowen therapy and diet and lifestyle changes.