Artificial iris: state of the art.

Surgical correction of traumatic aniridia aims to improve quality of vision, compartmentalize anterior and posterior chamber, re-establish a satisfying cosmetic appearance. Various types of prosthetic iris devices (PIDs) are available, that differ in technical difficulty of implant and design: artificial iris-intraocular lens (AI-IOL) prosthesis, endocapsular capsular tension ring based PID, and customized AI. The choice depends to the pre-existing clinical condition after severe ocular trauma and on patient's functional and cosmetic expectations. This systematic review of literature compared anatomical and functional outcomes of various types of PIDs. Of 185 articles found in literature, 70 fulfilled the eligibility criteria. 5 subgroups of PIDs were: Opthech, Artificial Iris from the Ophtec, Morcher, Humanoptics and 'other prosthesis'. Both glare and aesthetic outcome improved after surgery; in comparison to other PIDs, intraocular pressure (IOP) rise incidence was higher in the Morcher group (40%), whereas prosthesis dislocation incidence was higher in the Ophtech group (39%).