Bernard Jensen Int. - Sales of charts, videos and related iridology products.

Canadian Neuro-Optic Research Institute - Details of courses, events, clinical case studies and education tools, with iridology FAQs and information on iris capture systems.

Choices for Health and Harmony - Diane Elms presents basic treatment information, with details of what to expect at her Ontario practice.

Eyeronec Digital IrisScope Photography - Manufactures irisscopes using a digital camera and photo printer for all professional iridoligists.

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.

The Institute of Natural Health Technologies - Offers information about its available courses, with sales of charts and kits.

International Iridology Practitioners Association. - Overview, FAQs and education details, with information about membership, people and events.

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.

MD Jones Enterprises - Introduction and glossary of terms, with details of related products and training seminars.

The Skeptic's Dictionary - Iridology - Overview of history, with skeptical analysis.

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.