RE-DRAIN SURGERY IN PATIENTS WITH REFRACTORY GLAUCOMA

The choice of surgical treatment method for patients with refractory glaucoma of various etiologies is quite complicated. The most commonly performed surgeries are implantation of drainage devices or laser treatment methods. This article presents the results of repeated drainage surgery with Ahmed valve implantation in patients with previously implanted Ex-press shunt in patients with different types of refractory glaucoma. Objective. To present the results of surgical treatment of patients with advanced refractory glaucoma with implantation of Ahmed valve drainage after previous implantation of Ex-Press shunt. Methods. The study included 10 patients (10 eyes) with refractory glaucoma of various etiologies who had previously undergone Ex-Press implantation and subsequently received surgery with Ahmed valve implantation. Results. After surgical treatment, a statistically significant decrease in the level of intraocular pressure was detected in all cases. In the early postoperative period, in one case a choroidal detachment was detected. In the early postoperative period and also during the whole period of follow-up the drainage tube was in the correct position in anterior chamber. By the 6th month of follow-up hypotensive drops were required in 5 patients. Conclusion. At decompensation of intraocular pressure after antiglaucoma surgery with Ex-Press microshunt in patients with refractory glaucoma implantation of Ahmed valve drainage showed efficacy up to 3 years.