Iridology is the study of the iris of the eye. The iris reveals changing conditions of every part and organ of the body. Every organ and part of the body is represented in the iris in a well defined area. In addition, through various marks, signs and discolouration in the iris, nature reveals inherited weaknesses and strengths.

Iridology provides vital information needed in order to establish the root cause of ailments. These can then be treated with vitamins, minerals, herbs and many more modalities. An iris analysis is part of an initial naturopathic consultation and it is usually performed at the end of a consultation, helping confirm the practitioner's diagnosis.