Pearl Iris Cyst

Pearl iris cyst (s. iridis margaritica) is a benign cyst of the iris of the eye. It is called pearl because of its appearance - it has a shiny surface reminiscent of pearls.

This is a congenital neoplasm that originates from the epithelial cells of the iris. The cyst is usually single and localized in the anterior parts of the iris. With age, it slowly increases in size.

Clinical manifestations depend on the size and location of the cyst. When the cyst is small, it is often asymptomatic and detected by chance during examination. Large cysts can lead to displacement and deformation of the pupil, disruption of the anterior chamber angle, and increased intraocular pressure.

The diagnosis is made based on biomicroscopy data. In most cases, treatment is not required. Indications for surgical removal of the cyst are severe cosmetic or functional impairment. The prognosis after surgery is favorable.

Pearl iris cyst (s. iridis margaritica; synonym for epidermoid iris) is a benign neoplasm of the iris.

This is a rare disease that usually appears in childhood or young adulthood. Pearly iris cysts are dense, whitish or transparent nodules located on the anterior surface of the iris.

The reasons for the occurrence of such cysts are not completely clear. It is assumed that they develop from iris epithelial cells that become embedded in its stroma during embryogenesis.

A pearly iris cyst usually does not cause discomfort and is often discovered by chance during an eye examination. However, sometimes it can provoke inflammation in the anterior segment of the eye.

Diagnosis is based on biomicroscopy and ultrasound. Differential diagnosis is made with other iris tumors.

Treatment for pearly iris cysts involves surgical removal. The prognosis is favorable, relapses after complete excision are extremely rare.