ABSTRACT
INTRODUCTION: Cysts of the iris stroma may be congenital or acquired. They are rare tumors of the anterior segment. We describe the case of a 51-year-old patient presenting with a recurrent iris stromal cyst. OBSERVATION: The patient presented emergently for sudden recurrence of an iris stromal cyst with decreased visual acuity. He had already undergone needle aspiration and argon laser photocoagulation of the cyst 1 year previously. A Ultrasound BioMicroscopy (UBM) examination was performed to rule out any malignant tumor of the iris or ciliary body. Surgical treatment consisted of complete removal of the external layer of the cyst with Implantable Contact Lens (ICL) forceps after marsurpialization with scissors. The postoperative course was uneventful. CONCLUSION: Cysts of the iris stroma are rare benign tumors that pose problems due to their extension into the anterior chamber and recurrence.