- The London School Of Iridology - Provides details of courses, with staff profile and testimonials. United Kingdom.
- Guild of Naturopathic Iridologists - Registry of professional Iridologists with educational guidelines, courses, and events in the U.K.
- International Iridology Practitioners Association - Overview, FAQs and education details, with information about membership, people and events.
- Canadian Neuro-Optic Research Institute - Educational resources with clinical studies, research, courses, and assessment tools for students.
- MD Jones Enterprises - Introduction and glossary of terms, with details of related products and training seminars.
- International Sclerology Institute - Information about diagnosis of the eye with Sclerology, courses and educational resources, as well as professional membership.
- Healthline Diagnostics - Offers a range of equipment, tools and software for the professional iridologist, with details of online courses also available.
- Iridology Concept for Health - Saskatchewan practitioner's page that offers Iridology services and health programs.
- Iridology Page - Includes the Iridologist's Creed, articles, schools and tools directory, and bulletin board.
- Iridology Resource Page - Information on reading the iris and recognizing internal weaknesses. Has some basic history and links.
- Iridology Works - Offers a variety of software for use by both the professional iridologist and the student.
- Advanced Iridology Research Journal - Contains international research by John Andrews, his affiliate books, articles, courses, and an on-line newsletter.
- The Skeptic's Dictionary - Iridology - Overview of history, with skeptical analysis.
- Book on Iridology by Farida Sharan ND - A complete guide to diagnosing through the iris and to related forms of treatment [PDF]
- Choices for Health and Harmony - Diane Elms presents basic treatment information, with details of what to expect at her Ontario practice.
- Iridology and Health & Wellness Courses - Describes different kinds of Iridology and offers courses as well as other natural healing resources.
- Canadian Institute of Iridology - Description of professional courses offered and link to scientific journal.
- Healing With Iridology - Information site explaining how eye diagnosis works, its history, and value in the healing arts.
Media publications
- Iridology Is Nonsense - Article by Stephen Barrett, M.D., explaining the lack of scientific evidence to support the practice. (Published 2008-03-28 00:00:00)
- Iridology Misunderstood - This article discusses benefits as well as limitation to the science. Published by "Townsendletter.com" and Written by Bill Caradonna, RPh, ND. (Published 2003-05-01 00:00:00)