A 37-year-old woman presented with symptoms consistent with allergic conjunctivitis, but was found to have this incidental finding. What is the diagnosis?
Aniridia
Prominent iris collarette
Coloboma of the iris
Granulomatous iritis
Answer B. Prominent iris collaretteThe diagnosis is a protruding or prominent iris collarette. The finding was detected on slit-lamp examination. The iris collarette is a landmark that separates the central pupillary zone from the peripheral ciliary zone. It is typically flat but can be prominent, as seen here. This finding is a normal variant; it is benign and requires no treatment.
Immunology and Rheumatology