Keimyung Medical Journal, Vol.6(1) : 149-152, 1987
Persistence of a pupillary membrane is due to incomplete atrophy (resorption) of the fetal vascular arcades and associated mesodermal tissue derived from the primitive annular vessel. It is one of the most common, albeit usually clinically innocuous, congenital malformations of the eye. Corgenital pupillary membranes always arise at the collarette. Total persistence of the pupillary membrane is extremely rare and usually associated with other ocular anomalies, especially microphthalmos. The author describe a 15 year old female patient with amblyopia (0. D.) secondary to an extensive, bilateral persistence of the pupillary membrane unassociated with any other ocular anomaly, who received successful surgical removal.