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Rieger anomaly and Axenfeld-Rieger syndrome: a rare anterior segment dysgenesis

Axenfeld Rieger Syndrome is anterior segment dysgenesis characterized by posterior embryotoxon and dysgenesis of the anterior chamber. Developmental abnormalities of the anterior angle cause increased resistance to outflow. Ocular hypertension is a complication in almost 50% of the cases. It is an autosomal dominant disease and its prevalence is between 50,000 and 100,000 newborns per year. The main associated affected genes are FOXC1 and PITX2, occurring in 40% of the cases. Axenfeld Rieger Syndrome can be associated with systemic manifestations such as dental anomalies (hypodontia and microdontia), facial anomalies (maxillary hypoplasia, telecanthus and hypertelorism), redundant paraumbilical skin, hypospadia, auditory and cardiac alterations. Within this syndrome, we distinguish different phenotypes, being the Rieger anomaly the one with least systemic affectation. We present three cases in different stages of the disease, which allow us to understand the development and management of this disorder.