Iridology, also known as iris diagnosis or iridiagnosis, is defined as a science that identifies pathological and functional changes within organs via assessing the iris for aberrant lines, spots and discolourations. The practice of iridology is expanding rapidly as it is becoming known as a valuable tool for preventive healthcare. The iris is connected to every organ and tissue of the body by way of the brain and nervous system. It is in direct contact with the bioenergetic, bio-chemical, structural, hormonal, and metabolic processes of the body via the nerves, blood vessels, muscle fibers, and lymph. Holistically it is used to accurately assess the physical, mental, emotional, and psyche patterns for valuable health analysis. It is completely painless, non-invasive, and economically viable while providing constructive information for restorative and preventive health care