Iridology – The Science

There are various fibers and pigmentations within the iris of the eye. Are these indications significant? Yes! Iridology is the analyzing of these fibers and pigmentations within the iris. Iridology is a tool to monitor and maintain wellness for prevention.

Iridology F.A.Q.

Why Have an Iridology Assessment?

Iridology may answer the following key questions about your health:

  • What are my inherited health weaknesses?
  • What can I do to prevent dis-ease and maintain good health?
  • Does my body assimilate vital nutrients down to the cellular level?
  • Are my lifestyle habits and/or environment benefiting or inhibiting optimal health for prevention?

What is Iridology?

(pronounced, eye-ri-dology) The science and practice of Iridology is accomplished by analyzing the iris, sclera (sometimes referred to as Sclerology) and pupil. of the eye.  Iridology reveals assimilation, physical constitution, tissue accumulation, inherited strengths and weaknesses of the body.  It is said to be an “annual natural health check up” , monitoring the health levels of organs, tissues and glands of the body. Iridology is a science for wellness and prevention. more...

It is important to note that Iridology is not used for diagnostic purposes. Rather, it is used as a means of assessment for conditions and levels of health. Proper clinical terminology for Iridology or iris analysis is as follows: Genetic and Systemic Assessment through External Ophthalmic Examination.

Iridology provides a painless, economical and non-invasive means of assessing health status. It may be utilized

in conjunction with any other system of analysis or diagnostic procedure available.  Iridology can uncover hereditary predispositions to degenerative conditions and early pathogenesis decades before symptoms occur or diagnostic testing may reveal.

How Does it Work?

Iris analysis is most effectively done by imaging both eyes with a specialized digital camera. The pictures are then enlarged and carefully examined by a qualified iridologist who possesses the highest skills and standards. The iridologist should be certified through the International Institute of Iridology® in Holistic Iridology® . This advanced approach to iris analysis, which is now being used worldwide, encompasses various systems that are integrated into a truly holistic model. more...

The following overview of Iridology is scientifically explained in detail by David J. Pesek, Ph.D (founder of International Institute of Iridology):

With respect to human anatomy and physiology, it is important to understand that the ocular structures are innervated by five of the twelve pairs of cranial nerves: 2nd optic, 3rd oculomotor, 4th trochlear, 5th trigeminal and 6th abducent. Further, the eyes contain the four tissues of the body – epithelium, connective, muscular and nervous – along with the nutritive fluids of blood and lymph.

As sensory organs, the eyes have afferent nerve pathways that carry information to the central nervous system for processing. This information is then sent out via the peripheral nervous system through the efferent nervepathways to the autonomic nervous system. These nerve impulses innervate the muscles, organs and glands of the body.

The eyes are connected and continuous with the brain’s dura mater through the fibrous sheath of the optic nerves, and they are connected directly with the sympathetic nervous system and spinal cord. The optic tract extends to the thalamus area of the brain. This creates a close association with the hypothalamus, pituitary and pineal glands. These endocrine glands, within the brain, are major control and processing centers for the entire body. Because of this anatomy and physiology, the eyes are in direct contact with the biochemical, hormonal, structural and metabolic processes of the body. This information is recorded in the various structures of the eye, i.e. iris, retina, sclera, cornea, pupil and conjunctiva. Thus, it can be said that the eyes are a reflex or window into the bioenergetics of the physical body and a person’s feelings and thoughts.

Genetic information about an individual’s strengths and weaknesses can be interpreted through the connective tissue of the irises, including its structure, pigmentations and accumulations. The patterns of the trabeculas that comprise the visible aspects of the iris are unique to the individual. Health conditions that develop over time can be analyzed by changes in the iris, sclera, cornea, pupil, conjunctiva and retina. These changes in health are a function not of genetics alone but also of the ways a person eats, drinks, feels, thinks, lives and loves.

Iris analysis can uncover hereditary predispositions to degenerative conditions and early pathogenesis decades before symptoms occur or diagnostic testing may reveal. Thus, it is a valuable asset for preventive healthcare.

What is the History of Iridology?

The science and practice of iridology is not new. The oldest records uncovered thus far have shown that a form of iris interpretation was used in Central Asia (Mesopotamia) as far back as 1,000 BC, nearly 3,000 years ago. This information was found in cuneiform writings on tablets of clay from the civilization of Chaldea. The Greeks referred to this culture as the cradle of knowledge. Hippocrates, the “Father of Medicine” was born in approximately 460 BC in Greece on the island of Kos. more...

It is known that he looked in the eyes of his patients for health information. He said, “Inquiries are to be made and symptoms are to be noted, those in the whole countenance, those on the body and those in the eyes.” He was regarded as the greatest physician of his time. In the Bible, St. Luke writes that Christ said, “The lamp of your body is the eye. When your eyes are sound, you have light for the whole body, but when your eyes are bad, you are in darkness.”

In the year 1670, the physician Philippus Meyens, in his book, Physiognomia Medica, described the division of the iris according to organ regions of the body. The Viennese ophthalmologist, George Joseph Beer (1763-1821), did not know of these old views on iris analysis. Yet, in his 1813 publication, Textbook of Eye Diseases, he wrote, “Everything that affects the organism of an individual cannot remain without effect on the eye and vice versa.”

A Hungarian, Dr. med. Ignaz Péczely (1822-1911), published a book in 1880 entitled, Discovery in Natural History and Medical Science, a Guide to the Study and Diagnosis from the Eye. This book achieved an international renown and he is considered the renaissance father of iridology.

During the first half of the 20th century, iridiagnosis (as it was called then) was utilized here in the USA primarily by medical doctors. The following is a quote from Henry Lindlahr, M.D. circa 1919. “The ‘regular’ school of medicine (allopathic), as a body, has ignored and will ignore this science (of iridology), because it discloses the fallacy of their favorite theories and practices and because it reveals unmistakable the direful results of chronic drug poisoning (pharmaceuticals) and ill advised operations.”

Due to increasing political and economic pressure upon medical schools by the emerging pharmaceutical industry, the teaching of iridology was removed from the curriculum. Eventually this art and science was lost within the allopathic medical practice. However, it was kept alive by naturopathic physicians in the latter half of the 20th century. Most notably, Bernard Jensen, D.C., N.D., Ph.D. of the U.S.A. was the champion of this valuable tool of assessment until his passing at 93 years of age. Also of significant import were two of Dr. Jensen’s contemporaries who were Heilpraktikers, Hp. Josef Deck and Hp. Josef Angerer of Germany. Today, iridology is practiced worldwide, and in Europe it has been used clinically for generations.


© 2014 David J. Pesek, Ph.D.

International Institute of Iridology®

What Can Iridology Reveal?

  • Consitutional predispositions by iris color
  • Consitutional subtypes by trabeculae structure
  • Consitutional subtypes by accumulations
  • Inherently strong organs, glands & tissue structures
  • Inherently weak organs, glands & tissue structures
  • Genetic memory patterns held in tissues more...
  • Conscious thought and emotional patterns
  • Subconscious thought and emotional patterns
  • Hypoactivity and hyperactivity of tissue structures
  • Level of nutrient assimilation
  • Lymphatic/immune system congestion
  • Hypofunctioning skin
  • Circulation to the extremities
  • Cerebral circulation
  • Build-up of cholesterol plaque and inorganic salts
  • Levels of internalized stress and tension
  • Tissue mineral depletion
  • Toxic accumulations within the body
  • Influence of one organ on another, thus contributing to a condition elsewhere in the body
  • Hypofunctioning of the gastrointestional tract
  • Spastic or ballooned conditiond in the bowel
  • Prolapsus of the transverse and/or sigmoid colon
  • Relative ability f a organ, gland, or tissue to retain nutrients
  • Relative of toxins and metabolic waste in tissue structures
  • Inherent recuperative ability of the various organs, glands, and tissues
  • Preclinical stages of degenerative conditions
  • Health of the GI tract affecting other structures
  • Kidney congestion and excess mucous
  • Emotional mood swings
  • Build-up toxic substances before the manifestation of a disease
  • Chronically low oxygenation of tissues
  • Systemic over-acid body chemistry
  • Survival issues of a physical and/or emotional and.or mental nature
  • Basic nutritional requirements of the body
  • Self-esteem or self-image factors
  • Conditions that have developed after birth
  • Gestational and/or birth trauma with respiratory system involvement
  • Factors contributing to senility
  • Mental, emotional and physical stamina of an individual
  • Suppression of expression of thoughts and feelings
  • Pancreatic insuffciencies and grief issues
  • Mental and emotional pain and sensitivity
  • Issues of anger and resentment
  • Potential terrain for parasites
  • Difficulty receiving from self and others
  • Strong will, determination and motivation
  • Overactive mind with thoughts in many directions
  • Inherent endocrine system efficiency
  • Hereditary influences for mother
  • Hereditary influences for father
  • Nervous system energy force or depletion
  • If a person has a sympathetic or parasympathetic dominant nervous system
  • Potential transit time of the GI tract
  • If a person has the the predispostion to hold onto the past mentally and emotionally
  • Genetic information about sexual trauma, suppression or complusion, which could also be experiential
  • How a person experiences through his/her fice senses
  • How a person perceives what they have experienced from their parents or primary figures in their life
  • The overall health level of the body as a unified structure
  • The free-flowing aspect of consciousness and enthusiam

What Does Iridology NOT Reveal?

  • Diagnose any disease by name
  • Determine if a specific organ gland or tissue has been surgically removed under anesthesia
  • Reliably identify a parasite infection and what type of parasite it may be
  • Diagnose candida albicans overgrowth
  • Determine what type of diet an individual is presently eating
  • Determine how much water a person is drinking
  • Show healing signs be a lacuna partially filling in or disappearing more...
  • Show signs of degeneration by a lacuna forming after birth in normal, healthy iris trabeculae
  • Determine a specific blood level of cholesterol
  • Determine a specific blood glucose level
  • Measure an individual’s blood pressure
  • Indentify what prescription drugs a person is taking now or what they have used in the past
  • Pinpoint the specific pH of various body tissues
  • Identify toxic metals by name that have settled in tissues
  • Tell the gender of a client
  • Ascertain if a person has three kidneys
  • Show the presence of dental caries
  • Indicate reliably whether a tumor is present and what size it is
  • Evaluate a person’s visual acuity
  • Diagnose diseases of the eye