title: Safety study of capsular tension ring use in canine phacoemulsification and IOL implantation.
abstract: OBJECTIVE
  To evaluate and compare surgical outcome and complications in canine eyes with stable, cataractous lenses undergoing routine phacoemulsification and intraocular lens (IOL) implantation with or without implantation of a capsular tension ring device (CTR).
  
  
  METHODS
  Dogs undergoing routine bilateral phacoemulsification and IOL implantation had one eye randomly chosen to have a CTR (47 eyes) inserted while the contralateral eye served as a control (47 eyes). The CTR was placed in the capsular bag following phacoemulsification and immediately prior to IOL implantation. All eyes received acrylic foldable IOLs. Patients were evaluated intra- and postoperatively, and complications were compared between eyes with and without a CTR.
  
  
  RESULTS
  There were no intra-operative complications associated with implantation of the CTR. Postoperatively, the overall incidences of glaucoma (6%), intraocular hemorrhage (4%), and retinal detachment (2%) were equal between control and CTR eyes at the time of last follow-up. There was no significant difference in overall incidence of immediate postoperative uveitis (35% vs. 38%) or fibrin (19% vs. 15%) between control and CTR eyes. Follow-up time ranged from 2 weeks to 21 months.
  
  
  CONCLUSIONS
  In canine eyes with stable cataractous lenses undergoing routine phacoemulsification and IOL implantation placement of a CTR does not increase the risk of intra- or postoperative complications.
authors.affiliation: Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, OH, 43017, USA.
authors.forename: David A
authors.identifier: http://orcid.org/0000-0002-4237-0371
authors.initials: DA
authors.lastname: Wilkie
authors.affiliation: Vermont Veterinary Eye Care, Williston, VT, 05495, USA.
authors.forename: Sarah
authors.initials: S
authors.lastname: Stone Hoy
authors.affiliation: Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, OH, 43017, USA.
authors.forename: Anne
authors.initials: A
authors.lastname: Gemensky-Metzler
authors.affiliation: All Animal Eye Care, Inc., Jupiter, FL, 33458, USA.
authors.forename: Carmen M H
authors.initials: CM
authors.lastname: Colitz
mesh_terms: D000818:Animals; D002386:Cataract / Q000662:veterinary*; D004283:Dog Diseases / Q000601:surgery*; D004285:Dogs / Q000601:surgery; D005901:Glaucoma / Q000209:etiology / Q000662:veterinary; D019654:Lens Implantation, Intraocular / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D018918:Phacoemulsification / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D012163:Retinal Detachment / Q000209:etiology / Q000662:veterinary; D014605:Uveitis / Q000209:etiology / Q000662:veterinary
keywords: canine; capsular tension ring; cataract; lens; phacoemulsification