title: Ocular hypertension following cataract surgery in dogs: 139 cases (1992-1993).
abstract: OBJECTIVE
  To document the incidence of postoperative ocular hypertension (POH) after cataract surgery in dogs.
  
  
  METHODS
  Retrospective analysis of medical records.
  
  
  METHODS
  88 dogs that had had cataract surgery.
  
  
  METHODS
  The effect of several categorical variables on the development of POH was evaluated statistically. Postoperative ocular hypertension was defined as intraocular pressure > 25 and > 30 mm of Hg.
  
  
  RESULTS
  The incidence of POH > 25 mm of Hg was 48.9%; > 30 mm of Hg, 33.8%; > 40 mm of Hg, 20.1%; and > 50 mm of Hg, 5.8%. Mean onset of POH > 25 mm of Hg was 4.9 hours. The incidence of POH was not affected by the type of surgery. Eyes that had phacoemulsification developed POH significantly more rapidly (mean, 3.9 hours), compared with those that had extracapsular lens extraction (8.4 hours). Mean phacoemulsification duration was greater in eyes that developed POH, and older dogs were more likely to develop POH. Development of POH was not correlated with sex, stage of cataract, type of surgical procedure performed, intraocular lens placement, preoperative lens-induced uveitis, or posterior lens capsule tears and vitrectomy. However, eyes that received intraocular lens implants developed POH more rapidly, compared with eyes without implants.
  
  
  CONCLUSIONS
  The high incidence and early onset of POH after cataract surgery suggests that routine use of antiglaucoma medications in the first 12 hours after surgery is warranted.
authors.affiliation: Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville 32610, USA.
authors.forename: P J
authors.initials: PJ
authors.lastname: Smith
authors.forename: D E
authors.initials: DE
authors.lastname: Brooks
authors.forename: J A
authors.initials: JA
authors.lastname: Lazarus
authors.forename: P S
authors.initials: PS
authors.lastname: Kubilis
authors.forename: K N
authors.initials: KN
authors.lastname: Gelatt
mesh_terms: D000818:Animals; D002387:Cataract Extraction / Q000009:adverse effects / Q000662:veterinary*; D004283:Dog Diseases / Q000453:epidemiology* / Q000209:etiology; D004285:Dogs; D005260:Female; D015994:Incidence; D007429:Intraocular Pressure; D008297:Male; D009798:Ocular Hypertension / Q000453:epidemiology / Q000209:etiology / Q000662:veterinary*; D018918:Phacoemulsification / Q000009:adverse effects / Q000662:veterinary; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology / Q000662:veterinary*; D012189:Retrospective Studies; D014065:Tonometry, Ocular / Q000662:veterinary