Online Articles: Brief ReportProline-assisted Tube Insertion Through Sulcus in Ahmed ValveKasuga, Toshimitsu MD, PhD*; Asaoka, Satoko MD†; Asada, Yosuke MD, PhD*; Iwamoto, Satoshi MD, PhD*; Hirakata, Toshiaki MD, PhD*; Honda, Rio MD, PhD*; Ohta, Toshihiko MD, PhD†; Matsuda, Akira MD, PhD*Author Information *Department of Ophthalmology, Juntendo University School of Medicine, Tokyo †Department of Ophthalmology, Juntendo University Shizuoka Hospital, Izunokuni, Japan Supported by Grants-in-Aid from the Japanese Society for the Promotion of Science (no. 16K11303 to A.M., no. 20K18359 to T.K.), and from Novartis Pharma Research Grants to (A.M.). Disclosure: The authors declare no conflict of interest. Reprints: Akira Matsuda, MD, PhD, Laboratory of Ocular Atopic Diseases, Department of Ophthalmology, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo 113-8431, Japan (e-mail: firstname.lastname@example.org). Journal of Glaucoma: September 2020 - Volume 29 - Issue 9 - p e106-e107 doi: 10.1097/IJG.0000000000001602 Buy SDC Metrics Abstract To prevent corneal endothelial cell loss, ciliary sulcus tube insertion is preferred for the pseudophakic eye. However, we sometimes encounter technical difficulties when inserting the tube through the sulcus. Even in cases in which we are able to insert a 23-G needle through the sulcus into the space between the iris and intraocular lens, the tube of Ahmed valve may stray into the vitreous cavity or under Elschnig pearls. To remedy such conditions, we developed a new tube insertion method using a 4-0 proline stent as a guide to insert the tube in the appropriate position. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.