| About Iridology | | Explanation of Iridology, how it works, what to expect, health benefits, tips on choosing a practitioner and cautions. |
| Guild of Naturopathic Iridologists | | Details about the organisation, its membership, training, courses and accredited colleges within the UK, as well as background information on the history and practice of iridology. |
| Healthline Diagnostics | | Offers a range of equipment, tools and software for the professional iridologist, with details of online courses also available. |
| Iridology | | Finding internal weaknesses through the color of eyes. How iridology originated, pictures, and how it works. |
| Iridology Is Nonsense | | Article by Stephen Barrett, M.D., offering an explanation and history of iridology. |
| Iridology Page | | Includes the Iridologist's Creed, articles, schools and tools directory, and bulletin board. |
| Iridology Plus | | Canadian Journal of the Science and Practice of Iridology and Preventive Health Care, offering an article archive and subscription information. |
| Iridology Works | | Offers a variety of software for use by both the professional iridologist and the student. |
| Iris Studies | | Detailed resources and instructional information, offering product reviews, educational material, news, and images, and links. |
| Irisdiagnosis.net | | Offering a variety of diagnosis tools, books, and courses. Product and ordering information, with founder profile. |
| Irisdiagnosis.net | | A naturopath specialising in iridology, the Bowen method, and vitamin and mineral therapy. Lists details of methods used, courses offered, and lectures given. |
| MD Jones Enterprises | | Introduction and glossary of terms, with details of related products and training seminars. |
| SoftIris | | Overviews, screenshots and ordering information on a selection of iridology software and books. |
| Study the Iris | | Explains how iridology works and what it reveals about the patient. |
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