Aniridia is a rare genetic condition characterized by the absence of the iris, the colored part of the eye. This condition can affect one or both eyes and may lead to various vision problems, including sensitivity to light and difficulty focusing. Aniridia is often associated with other eye issues, such as glaucoma and cataracts. The condition is usually caused by mutations in the PAX6 gene, which plays a crucial role in eye development. Aniridia can be present at birth and may occur as part of a syndrome, affecting other parts of the body. Early diagnosis and management are essential for preserving vision and overall eye health.