Congenital aniridia causes a progressive loss of corneal sensitivity, clinical study reveals
Medical Xpress
February 27, 2026
Congenital aniridia is a rare disease caused, in most cases, by mutations in the PAX6 gene, which is essential for the development of ocular structures. Although the most visible feature is the total or partial absence of the iris, its effects go far beyond this, as those affected often experience focusing problems, photophobia, and various complications that may worsen over time.
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Originally published on Medical Xpress on 2/27/2026