Betty Sue O'Brian has an N.D. degree from the School of Natural Medicine, a B.S. and M.S. from the University of Southern Mississippi. A college teacher for 22 years, she is now a practicing naturopath and co-owner of the Southern Institute of Natural Health, a school where students can achieve certifications as health coaches, certified iridologists, and traditional naturopaths. She is a Master Sclerologist, a diplomat instructor for the International Iridology Practitioners' Association, and an herbalist with degrees from several programs, including Rosemary Gladstar, SNM, and Blue Boy Herb Company. She has studied and attended classes at the Ann Wigmore Institute and the International Sclerology Institute and taken courses from Dr. Bernard Jensen, Dr. Jack Tips, Dr. Farida Sharan, Dr. Danielle LoRito, Master Herbalist Darrell Martin and others from around the world. This quote from the New Testament inspires her studies of the eye: The physician Luke says, "Your eye is the lamp of your body; when your eye is not sound, your body is full of darkness.