Inner zone of iris
Anulus minor iridis
- Latin synonym: Zona pupillaris iridis
- Synonym: Pupillary zone of iris
- Related terms: Inner border of iris
Definition
The lesser ring of the iris (Inner border of iris; Anulus iridis minor) is the inner, narrow, coarsely striated, concentric pupillary zone on the anterior surface of the iris (pupillary zone), more delicate than the greater ring.
References
Text by Antoine Micheau, MD - Copyright IMAIOS