Abstract

SA.19.02

The iris diaghragm in vitreoretinal surgery

Szurman P.
Universitäts-Augenklinik, Eberhard-Karls-Universität Tübingen

Several pathologic conditions can lead to partial or complete aniridia. The etiologies include congenital aniridia, traumatic iris loss, and chronic mydriasis secondary to recurrent herpetic uveitis. Especially traumatic anirida provides highly variable pathology and leads to challenging surgical situations. Often, the iris residues are not accessible for simple iris suturing but need for more extensive reconstructive surgery using intraocular implants. Furthermore, those eyes are mostly complicated by several associated pathologies including corneal decompensation, aphakia and/or retinal detachment. Artificial iris implants are especially valuable in silicone oil surgery by serving as an iris diaphragm and thus preventing direct silicone oil contact to the vulnerable corneal endothelium. We review the different artificial iris prostheses available, the minimal-invasive implantation and suturing techniques, and the surgical considerations necessary. Today, artificial irides offer a safe alternative for patients who previously had no viable options for iris reconstruction in vitreoretinal surgery.

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