title: Combined cycloablation and gonioimplantation for treatment of glaucoma in dogs: 18 cases (1992-1998).
abstract: OBJECTIVE
  To evaluate a combined cycloablative and gonioimplantation technique for treatment of glaucoma in dogs.
  
  
  METHODS
  Retrospective study.
  
  
  METHODS
  18 adult dogs with glaucoma.
  
  
  METHODS
  Medical records of dogs that received a valved gonioimplant and a cyclodestructive procedure (cyclocryoablation or diode laser cyclophotocoagulation) during a 6-year period were reviewed. Retention of vision and intraocular pressure control were assessed, as well as number and nature of complications.
  
  
  RESULTS
  19 eyes of 18 dogs received a valved gonioimplant and either cyclocryoablation (n = 12) or diode laser cyclophotocoagulation (7). At > or = 1 year after surgery, 11 of 19 eyes had vision and 14 of 19 eyes had intraocular pressure < 25 mm Hg. Two dogs (2 eyes) were lost to follow-up 3 and 6 months after surgery. Despite the alternative route for aqueous humor flow created by the gonioimplant, 7 eyes had increased intraocular pressure (27 to 61 mm Hg) < 24 hours after surgery. Other complications included excessive intraocular fibrin, focal retinal detachment, corneal ulcer, retinal hemorrhage, cataract, and implant migration.
  
  
  CONCLUSIONS
  Combined cycloablation and gonioimplantation appears to be a promising technique for retention of vision and control of intraocular pressure in dogs with glaucoma.
authors.affiliation: Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison 53706-1102, USA.
authors.forename: E
authors.initials: E
authors.lastname: Bentley
authors.forename: P E
authors.initials: PE
authors.lastname: Miller
authors.forename: C J
authors.initials: CJ
authors.lastname: Murphy
authors.forename: J V
authors.initials: JV
authors.lastname: Schoster
mesh_terms: D000818:Animals; D000867:Anterior Chamber / Q000601:surgery; D003452:Cryosurgery / Q000662:veterinary*; D004283:Dog Diseases / Q000188:drug therapy / Q000601:surgery*; D004285:Dogs; D005260:Female; D005500:Follow-Up Studies; D005901:Glaucoma / Q000188:drug therapy / Q000601:surgery / Q000662:veterinary*; D020327:Glaucoma Drainage Implants / Q000662:veterinary*; D007429:Intraocular Pressure; D008028:Light Coagulation / Q000662:veterinary*; D008297:Male; D011183:Postoperative Complications / Q000662:veterinary; D012189:Retrospective Studies; D014785:Vision, Ocular