XEN Gel Stent Internal Ostium Occlusion: Ab-Interno RevisionPinto Ferreira, Nuno MD; Abegão Pinto, Luis MD, PhD; Marques-Neves, Carlos MD, PhDJournal of Glaucoma: April 2017 - Volume 26 - Issue 4 - p e150–e152 doi: 10.1097/IJG.0000000000000625 Online Articles: Case Reports Abstract Author Information Minimally invasive glaucoma surgery aims to provide a safer and less-invasive means of reducing IOP compared with traditional surgery, with the goal of reducing the need for topical medications. The XEN gel stent is an ab-interno minimally invasive glaucoma surgery device that approaches intraocular pressure reduction by creating a subconjunctival drainage pathway. As with any new device there is lack of experience and knowledge about its long-term results in terms of efficacy, technique, and complications. We report a clinical case of a XEN blood clot internal ostium obstruction and how it was managed. The ab-interno approach with microforceps seems a minimally invasive, safe, and effective procedure. Ophthalmology Department, Hospital Santa Maria—Lisbon Academic Medical Center, Av. Prof Egas Moniz, Lisboa, Portugal Disclosure: The authors declare no conflict of interest. Reprints: Nuno Pinto Ferreira, MD, Av. Prof. Egas Moniz, Lisboa 1649-035, Portugal (e-mail: firstname.lastname@example.org). Received October 5, 2016 Accepted December 10, 2016 Copyright © 2017 Wolters Kluwer Health, Inc. All rights reserved.