Iridologia is the study of the iris, the colored part of the eye, as a method of analyzing a person’s health status. This alternative health practice is based on the theory that each area of the iris corresponds to a specific organ or body system, with changes in iris patterns, colors, and markings potentially indicating various health conditions. Dating back to the 19th century, iridology charts serve as detailed maps that practitioners use to “read” the iris and identify possible health imbalances before they manifest as physical symptoms.

Le radici storiche dell'iridologia
The foundations of modern iridology can be traced back to Ignaz von Peczely, a Hungarian physician who first developed the concept in the 1860s. As the story goes, von Peczely noticed a dark streak in an owl’s iris after the bird suffered a broken leg. This observation led him to hypothesize a connection between iris markings and physical trauma or health conditions.
In 1881, von Peczely published his first iridology chart, mapping various regions of the iris to corresponding body parts and systems. His work was later expanded upon by Swedish homeopath Nils Liljequist, who observed changes in his own iris after taking medications. By the 1950s, American chiropractor Bernard Jensen had further developed these concepts, creating the most widely used iridology chart system that remains influential today.


One of the first iridology charts created by Ignaz von Peczely in the 1880s
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Understanding Iridology Zones
Iridology charts typically divide the iris into approximately 80-90 zones, each corresponding to different organs and body systems. These zones are arranged in a radial pattern, similar to slices of a pie, extending from the pupil (center) to the outer edge of the iris. The left iris is generally associated with the left side of the body, while the right iris corresponds to the right side.


Left eye iridology chart showing organ correspondences
Key Iris Zones and Their Correspondences
- The stomach and intestines are represented in the central area surrounding the pupil
- The heart and lungs appear in the upper quadrants of both irises
- The liver is primarily mapped to the right iris
- The spleen and pancreas are mainly found in the left iris
- The kidneys and reproductive organs appear in the lower quadrants
- The lymphatic system is represented in the outer rim of both irises
- The brain and nervous system are mapped to the uppermost sections
Left vs. Right Eye Significance in Iridology
In iridology, the left and right irises provide different information about the body’s health status. According to practitioners, the right iris primarily reflects the condition of organs on the right side of the body, including the liver, gallbladder, and ascending colon. The left iris corresponds to organs on the left side, such as the heart, spleen, and descending colon.
Body System |
Iride sinistra |
Iride destra |
Digestive |
Stomach, Descending Colon, Sigmoid |
Liver, Gallbladder, Ascending Colon |
Circolatorio |
Heart, Spleen |
Right Heart Chambers |
Respiratory |
Left Lung |
Right Lung |
Urinary |
Left Kidney |
Right Kidney |
Reproductive |
Left Ovary/Testicle |
Right Ovary/Testicle |

Comparison of left and right iris maps in iridology analysis
Decoding Iridology Chart Symbols
Iridology charts utilize various symbols, colors, and patterns to represent different health conditions and constitutional strengths or weaknesses. Understanding these visual indicators is essential for anyone looking to interpret an iris reading.
Color Coding in Iridology Charts
The base color of the iris itself provides fundamental information about a person’s constitutional type and inherent health tendencies:
Iris blu
Indicates lymphatic constitution. May suggest sensitivity to respiratory and lymphatic issues.
Iris marrone
Indicates hematogenic (blood-related) constitution. Associated with better circulation but potential for liver and digestive issues.
Mixed Iris
Indicates biliary constitution. May suggest mixed tendencies and potential sensitivity to stress and digestive disorders.
Iridology Chart Interpretation Guide
Beyond the base iris color, iridology charts identify various markings and patterns that may indicate specific health conditions:
- Lacuna – Enclosed, often darkened areas that may indicate inherent weaknesses or lesions in corresponding organs
- Cripte – Small, dark spots that may suggest toxin accumulation or cellular damage
- Raggio solare – Spoke-like lines radiating from the pupil, potentially indicating nerve irritation
- Pigments – Colored spots that may represent toxic deposits or drug accumulations
- Anelli – Circular formations that might indicate various systemic conditions
- Anelli nervosi – Concentric circles that may suggest nervous tension or stress

Common iris markings and patterns in iridology analysis
“The iris never lies. It records changes in the tissues of the corresponding body organs. The iris is to the physician what the outer dial is to the watchmaker.”
– Bernard Jensen, pioniere della moderna iridologia
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Iridology Chart Case Studies
To better understand how iridology charts are applied in practice, let’s examine some case study examples that demonstrate how practitioners interpret various iris signs:
Case Study 1: Digestive System Analysis
This iris shows multiple lacunae in the stomach and intestinal zones (central area surrounding the pupil). According to iridology theory, these enclosed darker areas may indicate inherent weaknesses in the digestive system, potentially manifesting as issues with nutrient absorption or inflammatory conditions.
Case Study 2: Stress Patterns
This iris displays prominent nerve rings (concentric circles) throughout the iris. In iridology analysis, these patterns are often associated with nervous tension, chronic stress, and potential adrenal fatigue. The density and number of rings may indicate the severity and duration of stress exposure.
Modern Applications of Iridology
While iridology has historical roots in the 19th century, it continues to evolve and find applications in contemporary holistic health practices. Today, many practitioners integrate iridology with other complementary approaches to create a more comprehensive health assessment.

Modern iridology practitioner using digital imaging technology
Integration with Holistic Medicine
Many holistic health practitioners incorporate iridology as one component of a broader assessment protocol. Rather than using it as a standalone diagnostic tool, they combine iris analysis with:
- Nutritional counseling to address potential deficiencies
- Herbal medicine recommendations based on constitutional types
- Lifestyle modifications tailored to individual health tendencies
- Stress management techniques for those showing stress indicators
- Detoxification protocols for those with signs of toxin accumulation
Digital Iridology
Modern technology has transformed iridology practice through high-resolution digital imaging and analysis software. These tools allow practitioners to capture detailed iris images, enhance specific features, and maintain records to track changes over time. Some software even offers automated analysis based on established iridology charts.
Diagnostic Limitations and Scientific Perspective
It’s important to note that iridology is considered an alternative health practice and is not generally accepted by conventional medicine. Scientific studies examining the validity of iridology as a diagnostic method have produced mixed results, with most conventional medical organizations not recognizing it as a reliable diagnostic tool.
Important Health Disclaimer
Iridology should not be used as a substitute for proper medical diagnosis or treatment. If you have health concerns, always consult with a qualified healthcare provider. Iridology may be used as a complementary assessment tool but should not delay appropriate medical care.
Comparing Major Iridology Chart Systems
Several different iridology chart systems have been developed over the years, each with its own approach to iris interpretation. The following table compares five major systems used by practitioners worldwide:
Chart System |
Origin |
Caratteristiche chiave |
Number of Zones |
Special Focus |
Grafico Jensen |
USA (Bernard Jensen) |
Detailed organ mapping, time-risk factors |
86 |
Nutritional deficiencies |
German Chart |
Germany (Josef Deck) |
Embryological basis, organ clusters |
60 |
Constitutional types |
Russian Chart |
Russia (E. Velkhover) |
Integrated with reflexology |
80 |
Neurological connections |
Modello pazzo |
Australia (Denny Ray Johnson) |
Personality and emotional patterns |
Varia |
Psychological traits |
Five-Element Chart |
China (Adapted from TCM) |
Based on Traditional Chinese Medicine |
5 main regions |
Energy meridians |
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Domande frequenti sui grafici dell'iridologia
How accurate are iridology charts for health assessment?
The accuracy of iridology as a diagnostic tool is debated. While many holistic practitioners report valuable insights from iris analysis, scientific studies have produced mixed results. Iridology is best viewed as a complementary assessment tool rather than a definitive diagnostic method. It may provide indications of constitutional tendencies and potential areas of weakness, but should not replace conventional medical diagnosis.
Can I learn to read my own iris using iridology charts?
While basic self-assessment is possible with study, accurate iris interpretation typically requires training and experience. Proper iris examination also requires specialized equipment to capture clear, magnified images. Many subtleties in iris analysis are difficult for beginners to identify correctly. If you’re interested in learning iridology, consider starting with educational resources and perhaps consulting with an experienced practitioner for guidance.
Do iridology charts differ between practitioners?
Yes, several different iridology chart systems exist, as outlined in our comparison table. While they share fundamental principles, they may differ in the exact placement of organ zones, the number of divisions, and their interpretative approach. This variation can sometimes lead to different readings from different practitioners. Most modern practitioners tend to use either the Jensen system or the German (Deck) system as their primary reference.
Can iridology charts detect serious medical conditions?
Iridology practitioners generally do not claim to diagnose specific diseases but rather identify areas of potential weakness or stress in the body. While some practitioners suggest that certain iris signs may correlate with particular health conditions, iridology should never be used as the sole method for detecting serious medical conditions. Always consult with a qualified healthcare provider for proper medical diagnosis and treatment of health concerns.
Embracing the Wisdom of Iridology Charts
Iridology charts offer a fascinating window into the potential connections between iris patterns and overall health. While the practice continues to be debated in scientific circles, many holistic health enthusiasts find value in the personalized insights that iris analysis can provide.
Whether you approach iridology with curiosity, skepticism, or somewhere in between, understanding the basic principles of iris topography can deepen your appreciation for the complexity of the human body and its interconnected systems. As with any health approach, iridology is most beneficial when integrated thoughtfully into a comprehensive wellness strategy that includes proper nutrition, regular exercise, stress management, and appropriate medical care.

Studying iridology charts requires patience and attention to detail
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