Iridology has been scientifically studied for over a century, but many people still don't know much about this full body health scan, done by analyzing the irises of the eye. Iridology is looked to as a preventative measure against illness, as it can detect changes in the body even before physical symptoms appear. LOCAL2's Jasmyn Rowley visited Healing Holistics on Wellington Street East, to learn more about this and other holistic practices.