---
title: 6. Constitutional Iridology
description: "Constitutional iridology is the assessment of an individual's inherited iris structure to identify long-term physiological tendencies, organ predispositions, and constitutional health patterns. PupilMetrics implements Dr. Josef Deck's classification system, expanded and annotated by Dr. Bryan K. Marcia's CCVE manuscript. >…"
url: "https://cnri.edu/docs/6-constitutional-iridology/"
updated: "2026-03-24"
category: Constitutional Iridology
---

# 6. Constitutional Iridology

Constitutional iridology is the assessment of an individual's inherited iris structure to identify long-term physiological tendencies, organ predispositions, and constitutional health patterns. PupilMetrics implements Dr. Josef Deck's classification system, expanded and annotated by Dr. Bryan K. Marcia's CCVE manuscript.

> ****Platform note:**** The constitutional type selector is available on ****Windows desktop only****. The constitutional panel and PDF section appear on all platforms when a type was selected before analysis.