Extension of a retracted ciliary sulcus tube of Ahmed glaucoma implant with angiocatheter segment.

One of the complications of glaucoma drainage device implantation is tube retraction. Here we present a technique for extension of a retracted sulcus tube in a patient with simultaneous penetrating keratoplasty and Ahmed glaucoma valve implantation, in which we extend the tube with a segment of angiocatheter, and then insert the tip of the tube in the ciliary sulcus. Postoperatively, ultrasound biomicroscopy shows proper positioning of the tube in the ciliary sulcus.