EX-PRESS Ab Externo Revision With a 41-G NeedleCutolo, Carlo A., MD*,†; Bonzano, Chiara, MD*,†; Bagnis, Alessandro, MD†; Scotto, Riccardo, COT*,†; Traverso, Carlo E., MD*,†Journal of Glaucoma: November 2018 - Volume 27 - Issue 11 - p e177–e179 doi: 10.1097/IJG.0000000000001070 Online Articles: Case Report/Small Case Series Buy Abstract Author InformationAuthors Article MetricsMetrics The EX-PRESS Glaucoma Filtration Device is a stainless steel, nonvalved filtration device that channels aqueous humor through a secure lumen to a half-thickness scleral flap, creating a subconjunctival filtration bleb. Elevated postoperative intraocular pressure may indicate occlusion of the device lumen or episcleral fibrosis, and it is essential to reestablish the flow in a timely manner to prevent bleb formation failure. We report the successful use of an extendible 41-G subretinal injection needle to rapidly restore device patency when the conventional bleb revision was not effective. *Ophthalmology Clinic, DiNOGMI, University of Genoa †IRCCS San Martino Polyclinic Hospital, Genoa, Italy Disclosure: The authors declare no conflict of interest. Reprints: Carlo A. Cutolo, MD, Viale Benedetto XV5, 16132 Genova, Italy (e-mail: email@example.com). Received July 17, 2018 Accepted August 18, 2018 Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.