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.
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