The trabecular bypass stent in a pseudophakic glaucoma patient: A 1-year follow-up

Abstract

PurposeTo describe the 1-year success of a trabecular stent implant in a pseudophakic glaucoma patient. The stent is implanted through a small corneal incision under gonioscopic control. Intraocular pressure control was reported in cultured human anterior segment.DesignObservational case report.MethodsWe report the case of a patient who was implanted and followed-up for 1 year at the Dipartimento di Fisiopatologia Clinica. The main outcome measures were intraocular pressure and visual field.ResultsThe patient’s intraocular pressure was controlled with topical beta-blockers for 6 months and without therapy for 6 months. Two diurnal curves demonstrated achievement of target pressure during the day. The 1-year visual field was unchanged.ConclusionsWe are not aware of previous reports of trabecular stent implantation in pseudophakic patients. The trabecular stent had minimal peri-operative morbidity. Identification of the implantation site is challenging and reduction of efficacy over time may occur.

Manchester iStent study: early results from a prospective UK case series

“…Fea et al . reported a single patient in whom pressure was lowered by implanting the iStent . Spiegel et al .…”

“…Fea et al reported a single patient in whom pressure was lowered by implanting the iStent. 11 Spiegel et al reported six patients who underwent iStent implantation resulting in reduction of IOP and topical hypotensive medication use. 12 The aim of this study was to evaluate the safety and efficacy of the iStent in reducing IOP in a larger patient cohort with open-angle glaucoma in the UK.…”

Trabecular Surgery

“…The same author previously published a case report demonstrating the effectiveness of the procedure in one pseudophakic patient. 13 More recently the effect of the iStent on flow was further elucidated by a fluorophotometic study by Fernandez-Barrientos et al 14 Thirty-three eyes of 33 patients were randomized to either two stents and cataract surgery (n = 17, Group 1) or cataract surgery alone (n = 16, Group 2). Before surgery, flow and outflow facility were similar between Groups 1 and 2 (1.78 +/-0.44 and 1.74 +/-0.82 microL/min; P = 0.18; 0.12 +/-0.03 and 0.13 +/-0.06 microL/min/mm H; P = 0.71, respectively).…”