Abstract
Congenital aniridia manifests with total or partial absence of the iris. The association of the disease with the PAX6 gene has been proven. Changes in the PAX6 structure lead to intrauterine pathology, visual organ malformation, malformation of master regulator proteins of organogenesis affecting various cells’ differentiation (central nervous system cells included). Such disorders result into the development of PAX6-associated syndromes with various brain malformations, neurological disorders, and systemic pathology (thyroid pathology, Wilms tumor, glucose intolerance). Isolated congenital aniridia is also accompanied by psychoneurological disorders. It can be associated with brain structures’ disorders during embryogenesis and with impact of external stress factors on the child (frequent medical checkup, surgical treatments). The psychoneurological disorders’ pathogenesis as well as congenital aniridia’s genetic mechanisms remain unclear. Thus, it is crucial to review new relevant data within the context of previously obtained information to gather full picture of the clinical signs of the disease and to improve the management of children with congenital aniridia.
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