URMC / Flaum Eye Institute / Angle Surgery / Resources Resources The following links are here to inform you about and improve your knowledge of angle surgery. The site authors recognize that this list is incomplete and will be defined by users of this site as it grows. We have no financial interest in any commercial technologies mentioned below and imply no endorsements. If you would like to suggest a resource, please contact us sending a link and any relevant copyright information. Useful materials will only be posted pending permission from the author(s) or owners of the information. Publications Progressive Visual Field Loss in the Setting of Normal IOP Intra-operative Gonioscopy - A Key to Successful Angle Surgery IOP Control: Know Your Surgical Options Optimizing Angle Surgery ACT Gonioscopy is Essential for MIGS Web Sites Gonioscopy.org American Glaucoma Society Presentations AAO 2015 - 10 Essential Steps of Intra-operative Gonioscopy Other Book Chapter Citation The Hydrus Micro-stent Gonioscopic Angle Anatomy This image shows Pre-operative assessment of angle structures. The scleral spur (SS) [white band] serves as a surgical landmark separating canal based from suprachoroid based micro-invasive glaucoma surgery via the trabecular meshwork (TM) [brown pigmented line] and ciliary body (CB) [gray band] respectively. Gonioscopic Assisted Angle Surgeries Procedure # Performed or Implanted FDA Approval or Trials Trabectome (NeoMedix) >5,435 June 2006 iStent (Glaukos) >100,000 June 2012 CyPass (Transcend) >1,000 COMPASS trial completed March 2015 Hydrus (Ivantis) 2000 Investigational use in U.S.