Congenital miosis, Pinhole pupils, Congenital microcoria
Type of disease: Rare conditions
Congenital microcoria is a rare anomaly of the pupils. It is characterized by pupils of less than 2 mm diameter and is caused by the underdevelopment of the dilator pupillae muscle of the iris. This anomaly is associated with nearsightedness and glaucoma.Source: Genetic and Rare Diseases Information Center (GARD), supported by ORDR-NCATS and NHGRI.