Catalog

Microcoria

No MMS code

Link to WHO Definition

Microcoria – http://id.who.int/icd/entity/290409436

Congenital microcoria is an uncommon bilateral ophthalmological disease marked by partial or complete absence of the dilator muscle of the pupil. At birth, infants have small pupils (< 2 mm) and a far away gaze. The disorder can cause malformations of the anterior part of the eye, leading to errors of refraction (myopia, astigmatism) and sometimes severe juvenile glaucoma. The iridocorneal angle may also be modified and the irides transilluminable. The disease is transmitted as an autosomal dominant trait.