Iridology: The Diagnosis from the Eye is a book written by Henry Edward Lahn. The book is an introduction to the principles of iridology, which is the study of the iris of the eye as a reflection of the body’s overall health. According to the principles of iridology, different areas of the iris are believed to be related to different organs and systems in the body, and changes in the color, texture, and other characteristics of the iris can be used to identify health problems or imbalances.
In Iridology: The Diagnosis from the Eye, Lahn discusses the history and theories of iridology and provides guidance on how to interpret the signs and symbols in the iris. The book also includes illustrations and photographs of the iris to help readers learn how to identify various patterns and features.