has part has part characteristic of inheres in has modifier Aniridia Abnormality of the iris characterized by, typically bilateral, complete or partial iris hypoplasia. The phenotype ranges from mild defects of anterior iris stroma only to almost complete absence of the iris. SNOMEDCT_US:69278003 HP:0000526 Absent iris HP:0011498 UMLS:C0003076 Aplasia/Hypoplasia of the iris abnormal absent iris