Contains international research by John Andrews, his affiliate books, articles, courses, and an on-line newsletter.

Description of professional courses offered and link to scientific journal.

Diane Elms presents basic treatment information, with details of what to expect at her Ontario practice.

Registry of professional Iridologists with educational guidelines, courses, and events in the U.K.

Information site explaining how eye diagnosis works, its history, and value in the healing arts.

Overview, FAQs and education details, with information about membership, people and events.

Describes different kinds of Iridology and offers courses as well as other natural healing resources.

Introduction and glossary of terms, with details of related products and training seminars.