Robert Van der Hope is an Australian Naturopathic Doctor who has closely studied the human iris for over 40 years His examination of the work of Jensen, Angerer, Deck, Velkhover, Andrews and others has been undertaken in order to gain a full overview of their studies and findings. On the basis of this and his own clinical experience he has also produced a comprehensive iris chart, Iris Diagnosis Chart for the General Practice” (revised and updated edition, December, 2019) combining the best information available from his own practice and that of others.