What are some limitations of Iridology?
The limitations exist primarily in the incomplete understanding and lack of rigorous scientific protocol among those who practice and study the topic. The limitations are not specific to any geographic or political boundaries. In the practical sense, the use of diagnostic information from the iris is limited in the specificity of its response to ongoing physiological processes. It is also limited in having slow response times; for example, injuries and sudden changes in health status are not indicated in the iris (despite legends and lore to the contrary).
