Squamous epithelial implantation cyst of the iris

A case of an iris implantation cyst was managed by penetrating keratoplasty and iridocyclectomy. The histology and electron microscopy of the cysts are described as well as the clinical histories and photographs of six additional cases. The potential complications of iris implantation cysts are iritis, cataracts, glaucoma, and decreased vision. Since ruptured cysts can cause an epithelial downgrowth, in toto removal was indicated in this case.