Professor Jurasunas offers an introductory overview to the history and practice of Iridology. He draws from his 50 years of clinical practice and offers real life cases, emphasizing the value of Iridology as a diagnostic tool, explaining the relationship between the iris, nervous system, and body's organs, as well as embryological development.

1. Health and Disease by Iridology Examination
By Professor Serge Jurasunas
Today with all the recent developments and new devices found in
both conventional and alternative medicine, we may wonder if
Iridology is still as reliable and has kept a place in the diagnosis of
patient diseases, biological terrain and organic function. I
originally learned about Iridology when I first met Dr. Bernard
Jensen N.D., D.C., PhD., back in 1962 in Los Angeles. He was
probably the greatest or at least one of the greatest Iridologists
of his time, a true pioneer of the past century. I have always been
fascinated by Iridology, since observing an iris is like opening a
window on your patient's physical, psychological and hereditary
condition, which to me is critical in understanding your patient's
disease.
Over the past 50 years I have always used Iridology even if we
have other modern equipment at our disposal including molecular
markers testing because I feel that Iridology should remain the
main diagnostic tool for a true Naturopathic doctor. Lately many
medical doctors have been taking Iridology courses which really
favors this science.
A Brief View of Iridology:
We could say that looking into the iris is a relatively new science
but historically speaking, its not. Even if we refer to Ignazt Von
Peczely (1822-1911) as the father of Iridology, the oldest
archaeological records show a form of iris interpretation was used
in Mesopotamia as far back as 1000BC. I personally have a copy
of an iris chart dated from 600BC found in a cave in Israel. We
also have some references by the physician Philippus Meyers in
the year 1670, where in his book he described the division of the
iris according to the organ regions of the body. Dr. Henry Lindhar

2. M.D., D.O. introduced Iridology in the USA and published his
first book Nature Cure Philosophy and Practice, a monumental
work in 1913 Other well known names include Dr. M. Mc Lain,
F.W. Collins, H. Kristzer. This does not even mention the German
pioneers and the enormous amount of publications made since
1913. So yes Iridology is not new. While we can say Iridology's
teaching and practice was done under an empirical state, the same
can be said for medicine and even oncology at the beginning.
Why the Iris can Reflect the Body's Organs:
Recent new discoveries in embryology are finally showing some
strong support regarding the relationship between the iris, the
brain, the nervous system and the position of the organs found in
the embryo. With regard to human embryology, iris tissue derives
from the same embryological layer as the nervous system, we call
the ectoderm. Since the eye is formed from embryonic brain
tissue, it has a real neurological umbilical cord in which the
written data derives from the parental body's condition and
nervous system. It is interesting to learn that the hypothalamus has

3. a rich neural connection with all aspects of the eyes, including the
iris, pupil, pigmented retinal epithelium (IPB), retina and sclera
during the it's development and maturation in-utero. The
hypothalamus receives, processes and sends information to the
eyes and iris constantly. Observing both the brain area and the
hypothalamus remains one of the major examinations in Iridology.
In fact the eyes are connected directly with the sympathetic
nervous system and the spinal cord, while the optic tract extends
to the thalamus area of the brain itself functioning as a major relay
and integration station for the information that goes to all the areas
of the cerebral cortex, basal ganglia, hypothalamus and brain stem.
Iris analysis can uncover hereditary parthenogenesis decades
before any symptoms occur or conventional diagnostic testing
may be able to reveal. In fact over my decades of practice I have
predicted physical disease and cognitive disorders, even cancer to
patients that came back to me after 4 years or even after 30 years
after their initial consultation with a diagnosed disease. I even
mention such an example in my book along with supporting iris
photos.
This was possible because all the parental inheritance was
included right at the beginning of embryonic development cycle
since the eyes are formed before the organs start to differentiate
with all the genes already being present in the mass of iris cells,
fully encoded with the genetic system. When we are born, all the
data related to the tissues of the organism, the nervous system, the
mechanical and psychological brain, the organs and the lymphatic
system are already imprinted in the iris stroma just like a map or
cartography.

4. Embryonic Development of the Nervous System and
Gut:
This article can not describe the whole Science of Iridology since
this needs a book by itself. It does explain why or how health and
disease begin in the colon and the embryonic association between

5. the gut and other organs of the body. Long before we associated
the intestine as our second brain, we utilized Iridology to make
this association quite visible in the iris provided one had the
knowledge and experience to do so. This is what I first observed
many years ago.
All the organs of our body are formed from the 3 layers embryonic
tissue which are the ectoderm, endoderm and mesoderm. We are
going to see that the gut and other internal organs like the liver,
pancreas, heart, lung, bladder and kidney are made from the same
embryonic tissue as the endoderm that also keeps a link with the
nervous system and brain that comes from the ectoderm. The
position of the body's organs in the iris chart is corresponds
exactly to the same position of the body's organ development in
the embryo (See my book for more detail). Just to explain, in the
embryo the nervous system is developed right alone side of the
gut, called the spinal nervous system or notochord. The
anatomical position of the gut is located right in the middle of the
embryo and the central nervous system (brain) is located on the
top exactly as shown in the iris topography. The spinal cord has
little branches that go almost everywhere in the body even
extending to the organs including the gut and maintains a close
relationship. At 8 weeks internal organ buds are beginning to form
along the gut, extending as they develop, to feed them. (see
figures).
Therefore we have an embryologic relationship between the gut
and the internal organs made from the same tissue and a
relationship between the gut, the nervous system and the brain.
This is what the iris can show you since by referring to the iris
chart you realize that actually organs are situated according to
their position in the embryo (see figure). In placing the embryo
outline over the iris chart, we see the areas of the ectoderm, the
mesoderm and the endoderm developed as they are found in the
embryo and relate to the location of the various organs and body

6. structures. Now if where the liver buds the tissue colon is weak
you probably have a bad liver and the iris will show some specific
signs. Since the beginning of my practice I always observe the
colon area first and then around what is called the collarette or the
autonomic nervous system that emerges from the bowel during the
development of the embryo, which represents our nervous,
physical and emotional constitution and it's relation with the colon
itself, the liver and pancreas.
The collarette is a main landmark within the iris and considered to
be one of our most important structures in the entire body. The
difference in collarette structure that goes all around the colon as a
circle in normal condition can appear contracted, restricted, in a
zig-zag pattern or even distended. This is indicative of our nervous
constitution, our hereditary status of emotional and physical
condition. This observation of the colon and collarette is crucial
since it may inform us about the origin of a lung, liver or pancreas
disease because there is an arc reflex existing between the colon,
the collarette and one particular organ. In Iridology practice we
found today that most patients have a bad liver that doesn't detox,
they have a bad pancreas but they don't know about these
conditions. Many non-sick patients show risk of pancreatic cancer
with an arc reflex syndrome visible in their iris. I remember
warning a patient about a high risk of ovarian cancer because her
left iris showed an arc reflex syndrome involving the ovary and
really a very intoxicated colon especially the sigmoid.
Unfortunately she didn't pay attention and never came back for
consultation. But 4 years later, what do you think ? She came in to
see me with the diagnosis of ovarian cancer and was undergoing
chemotherapy which she could have avoided by listening to my
warning.

7. Often you may observe that the colon area is extended to one
particular organ like the liver or lung for instance. Why? Once
the organs of our body are formed they are covered with tissue
called peritoneum, which is itself generated from the intestine. So
all of our internal organs in the embryo are covered by this tissue
which originates from the colon wall. Therefore, we can say that
each one of our organs has an embryonic relationship with the
colon. All the organs are placed around the intestinal tract exactly
like in the embryo. This is why Iridology is important as a way to
diagnose a patient and know about his or her hereditary status, to
understand the whole condition and the cause of the disease.
Today we also realize that intestinal disorders are probably the
main problem in our society coming from unhealthy diet, stress
and bad bowel function. This is central in an iris examination

8. because looking at the colon in the iris you can observe where the
weaker tissue zones are located that pick up more toxins and
always appear darker. We also look at the nearest opposite internal
organ by remembering the collarette's structure. First you observe
an intoxicated colon, maybe also with some inflammation, maybe
a spasmodic colon, a ballooned colon, a prolapse of the transverse
colon or sigmoid, maybe diverticulosis, a colitis or even a very
dark intoxicated colon resulting from chronic constipation.
This is the one subject of my book addressing the introduction of
intestinal disease and how to treat it with natural remedies and
diet. Besides local disease we need to also observe for an arc
reflex syndrome that may be the cause of a chronic hepatitis, lung
cancer, lung fibrosis, ovary cancer, kidney dysfunction and also
other organic dysfunctions or symptoms. I am speaking of cancer
since many readers may know my long term involvement with this

9. disease. Every year I still handle 200-300 cancer cases while 20
years ago it was double or more. Even with using other modern
diagnostics and for the past 10 years molecular markers testing, I
still feel that Iridology is always a good diagnostic approach for
cancer patients.
A few years ago I developed an iris chart showing a breast cancer
profile being the number one cancer coming to our clinic. Being a
very emotional disease I discovered over the past 40 years, the
relationship between breast cancer with constipation which is the
subject of a whole chapter in my book. As I explain chronic
constipation is responsible for a number of symptoms, organic
disorders and even disease from toxemia and auto-intoxication
which for Naturopaths may be seen as the prime cause of disease.
More recently I heard about the report from Filip Scheperjans, a
researcher at the Department of Neurology at the Hospital
University of Helsinki (Finland) saying that constipation precedes
several years before the manifestation of nervous motor symptoms
related to Parkinson disease. Is this anything new ? I have been
claiming this for years, where Iridology can really show how
intoxicated patients are with Parkinsons disease.
Just remember that 70 million Americans suffer from constipation
with a bowel movement every 2 or 3 days or even 4 or 5 days as it
happens with many patients coming to see me. It means 4 pounds
of toxic waste and feces are stored in the colon that sticks to the
wall developing putrefaction with infiltration of toxins into blood
circulation. Some reports show that the average American
accumulates up to 6 kg of feces in the colon, sometimes even
more. It creates conditions for the formation of gas and flatulence
which are visible in an iris examination. Pains, headaches ,
nervousness, irritability, bladder infection not even mentioning
ovarian cysts, colon ulcers, bad circulation in legs and so many
other disorders can be discovered.
This gave me the opportunity to develop an iris chart showing the

10. relationship between the colon reflex points and the body organ
dysfunctions which represent the long road of my experience with
Clinical Iridology. Of course we cannot forget about the brain
since we are talking about the intestine as our second brain but
even long before we were observing this mechanism since
Iridology really shows the relationship between the colon and the
brain which in the iris chart is situated above the intestinal tract
between 11:00 o'clock and 1:00 o'clock. Often we observe the
presence of Radii Solaris or radical furrows coming up from the
transverse colon and going through the brain area especially on the
hypothalamus zone. First it shows an infiltration of toxins into the
brain area and affecting the hypothalamus a gland associated with
various interactions of psychoneuroimmunology, not to mention
the regulation of different systems in our body, being central to
appetite, energy level, etc. One other hypothesis is that neuro-
toxins produced by intestinal bacteria can stimulate the neurons of
the intestine that in turn activate the vagus nerve going to the brain
causing nervous dysfunction.
When you use Live Blood Analysis along with an iris examination
Hypothalamus-Radial Sign

11. it is amazing to see just how intoxicated the blood of patients with
chronic constipation can become, along with other diseases that
include breast cancer, which always indicates bacterial invasion. It
shows what you see in irises with congestion of the lymphatic
system, of the Extra Cellular Matrix (E.C.M.) or bad kidney
function offers a visual record of accumulated toxins, bacteria,
yeast forms like candida, heavy crystals or oxidized fats.
Intoxicated blood circulates to the brain and we know that bacteria
release neuro-toxins that develop inflammation of neurons, but it
also can affect our cells since intoxicated blood with lower oxygen
reaches the cells and nourishes them deficiently. Cells make up
tissues and tissues make up organs and organs make up the body.
So to be healthy we need healthy cells, we need a healthy E.C.M.
(cellular environment) and especially healthy mitochondria. If you
look at the the figure of the Iris embryology map you'll find in the
ciliary zone the E.C.M., connective tissue and the lymphatic
circulation just next to the periphery of the iris is often congested,
also called lymphopathy (See my book). This is the basis of
Naturopathic principles but today with support from modern
research concerning the relation of the cells with the E.C.M. We
find in the case of chronic toxicity or inflammation the fluid
consistency of the matrix becomes stiffer causing the connective
tissue to become more gelatinous and even causing an edema in
the E.C.M. This can further cause a blockage in the exchange
between the cells and the rest of the body which can provoke a
total collapse of the cell's mitochondria and may initiate a process
of cancer.
Today science is studying the variation of the human genome and
has come to the conclusion that four letters of the alphabet of the
gene ACGT is responsible for disease and cancer. But who or what
is responsible for this? Toxic environment! Yes but also a bad
colon or a bad liver. A bad nervous system, chronic constipation
can even adversely affect your immune system. So yes, Health
and Disease Begin in the Colon as Seen through Iridology, and

12. remember that the gut is the first soft tissue organ developed in the
embryo. Also we should consider that the intestine or gut with
original embryonic development is in the middle of the organism
and everything else derived from it. Every organ, gland and tissue
in the body depends on it and what comes from it, including food,
digestion and elimination. Everything depends on this and so do
our cells and our health status, even possible future diseases .
The beginning of each treatment should be concerned with the
balancing of the embryonic germinal tissue layers such as the
ectoderm, mesoderm and endoderm, speaking of the colon and
internal organs. Such an approach also includes protocols for
detoxifying the colon, liver, kidney, lymphatic system and E.C.M.
This is then followed by regeneration of the tissue cells, DNA of
the intestine which including the microbiome situated in the small
intestine, all well defined in the iris chart. Then we address any
internal organ making an arc reflex condition that involves the
collarette needing a specific treatment. See my book for
detoxification protocols and associated therapies,vegetable juice
cure and natural supplementation.
The contribution which iris diagnosis can offer to medicine and
thus to the individual in health and disease, lies in that very field
of preventive medicine making an essential distinction between a
healthy iris and person and a sick person. It can establish the
constitutional weakness of a patient, his or her genetic
individuality and the family predisposition pathology before
manifestation of the disease. When you observe a very bad colon
and collarette in a patient you are also looking at the colon and
nervous system of parents and grandparents. In my book you will
see iris photos of a bad colon and the associated symptoms in the
case of a young woman next to the iris photo of her mother having
the same problem. Even better we could say the genetic
predisposition the daughter inherited from the mother.

13. Often we look to holistic medicine because the whole body is one
with the physical, mental and spiritual status which today already
has been proven. This new science is called
psychoneuroimmunology, but since Iridology has always shown
that all the organs of the body are connected with each other that
more importantly you are observing the genetic condition of your
patient. From the study of embryology and the observation of the
organs and systems connecting with each other, we can say by
looking at the real condition that the iris is a vital and highly
credible dynamic tool for analysis and diagnostics.
Here are the words of Hippocrates: “The whole is more than the
parts but the part belongs to the whole”.
References:
Bernard Jensen D.C. PhD. Embryo Throughout Life. Text
book.2000
John Andrew. Embryology in Iridology. Text book. UK.2004.
J. Deck Differentiation of iris marking. *Book published by the
author, 1980.
Serge Jurasunas M.D.(Hom) N.D. The Biological Approach to
Breast Cancer. Deutscher Heilpraktikertag Congress 2004
Dusseldorf. Germany. (Available online)
Serge Jurasunas M.D.(Hom) N.D. Health and Disease Begin in
the Colon. Featuring Prof. Jurasunas' Natural Medicine. Ingram
Spark USA. UK. 2016
Serge Jurasunas is an internationally well-known doctor of
Naturopathic Medicine and Professor of Naturopathic Oncology,

14. with 50 years of clinical experience in the treatment of cancer. He
is a pioneer in developing innovative therapies in cancer treatment
and an expert in Live blood Analysis, Dried Blood Oxidative
Stress testing and Iridology. Serge Jurasunas has now become a
specialist in Molecular Markers testing related to cancer patients
and patients with high risk of cancer. He is a internationally
known lecturer and frequent contributor to The Townsend Letter.
For more information and to learn about cancer treatment, colon
detox, Iridology and Molecular Markers , please visit www.
sergejurasunas.com or E-mail sergejurasunas@hotmail.com.
Skype: Serge Jurasunas. Phone. 351-912565038 in Lisbon,
Portugal.