Iridology is the study of the iris, pupil, and sclera. Each iris has its own unique pattern of colours, fibre density, and structures. Each pattern represents the flow of energy within the different body systems. The "fibre" structure of the iris, "pigmentation", "spots" or "rarefaction", as they are referred to during a consultation, are all indicators of potential strength or energetic dysfunction.

When examining an infant's eye, it appears clear and bright, in contrast to the dull, murky, milky, and often glazed eyes of the elderly. Over time, accumulations of toxic waste, acids, and catarrh infiltrate various tissues, impacting weaker organs and altering the iris's colour and appearance. Inorganic minerals, salt, drugs, and suppressive treatments leave deposits reflected in the iris.

The iris can indicate whether the body is eliminating or retaining wastes, and the condition of the nervous, circulatory, or lymphatic systems.

Dysfunction may be a sign of a family history of a certain — possibly hereditary — condition that you may be susceptible to. Therefore, attention to certain system(s) is required. It can also be a sign of a condition you may experience in your lifetime. Most often, signs relate to something you already know. For example, many people change their diet because they have difficulties digesting some foods, or foods that are generating discomfort or pain, and then Iridology reveals that they may be intolerant to gluten, or have predisposed lower gastrointestinal integrity, or that stress has a greater impact on their digestive system than in most people.

In other terms, nerves connected to every single part of the body will display energetic weaknesses in the exact zones of the iris. This is why, I believe, Iridology to be extremely accurate.

It does not mean, however, that by looking at the iris, a practitioner can tell when you are going to die, if you have cancer and what stage it is (even though there might be indications of tissue degeneration), or to use it as a tool to "treat" you.

Iridology, again, as a holistic method, does not endorse the modern medicine “one pill for an ailment” approach.

In fact, iridology avoids naming diseases; it doesn't pinpoint 'asthma' or 'arthritis' but reveals inflammation and the extent of tissue or organ involvement. Iris analysis is a powerful tool for understanding the whole person, identifying your constitution, strengths, and weaknesses. While the iris has broad applications, its primary value lies in uncovering underlying causes.

​As clearly understood in Traditional Chinese Medicine, it is all about energy and how it circulates in the body; when there are blockages or stagnation, disease occurs. Furthermore, much of the dysfunction identified in iris reading can reveal disorder-associated emotional imbalances. For example, signs in the liver zone can be an indication of holding onto past anger and likely suppressed feelings. The heart-thyroid axis is also an indicator of poor emotion management and the inability to express our feelings. Subsequently, blockages form between the heart and the thyroid, placing heavy strain on the heart. This can lead to bitterness and poor coping mechanisms, as well as toxic thought patterns and negative self-talk.

It is believed that each organ has specific emotional precursors that, in an area of weakness, can trigger a set of physical symptoms. Some have been studied extensively. Some of the most well-known connections are:

• Highly recurring throat infections can develop in people who feel they are not heard, that they are unable to voice their feelings, or that no one is listening or cares about what they have to say.

• An inflamed gallbladder is associated with hidden emotions like hatred, bitterness and the inability to forgive.

• Stomach complaints are often associated with the feeling of “it makes me sick to my stomach!”

Iridology-proven science includes a Type, a Subtype, and a Diathesis, all of which include the fibre structure of the iris, the shape and position of the “rings”, and markings and signs position. These signs, even though nobody may have the same iris in the world, will relate to your own body's flow of energy and health status.

As a practitioner, Olivier uses iridology in his holistic approach to health, as a tool to confirm observations from a nutrition consultation. It may even bring further questions that he could perhaps have missed otherwise during the face-to-face assessment.