Source:http://linkedlifedata.com/resource/umls/id/C0003076
MSH: A congenital abnormality in which there is only a rudimentary iris. This is due to the failure of the optic cup to grow. Aniridia also occurs in a hereditary form, usually autosomal dominant.,NCI: A rare genetic inherited abnormality characterized by the partial or complete absence of the iris of the eye.