Monarch Disease Ontology term MONDO_0015199 (aniridia - intellectual disability syndrome) can be described as follows. Aniridia-intellectual disability syndrome is an extremely rare autosomal dominant developmental defect of the eye described in several members of one family that is characterized by the association of moderate intellectual disability with aniridia, lens dislocation, optic nerve hypoplasia and cataracts. There have been no further descriptions in the literature since 1974. Also known as: Walker-Dyson syndrome.