Persistent pupillary membrane and accessory iris membrane in cataract surgery

Incomplete involution of the anterior tunica vasculosa lentis is observed in most newborns, including persistent pupillary membrane (PPM) and accessory iris membrane (AIM). PPM is a common congenital ocular anomaly characterized by delicate iris strands along the pupil. AIM is a rare congenital ocular anomaly characterized by iris tissue strands arising from the iris collarette, forming a pseudopupil. Although most of these membranes do not lead to visual impairment, they can pose challenges during cataract surgery. Our case highlights a unique scenario involving the concurrent presence of PPM and AIM in cataract surgery. The surgeries were performed uneventfully without postoperative complications. To prevent unnecessary interventions and potential disappointment, it is essential to individually assess and plan strategies for patients with either PPM or AIM.