Ocular hypertension following cataract surgery in dogs: 139 cases (1992-1993)
Smith, P.J.; Brooks, D.E.; Lazarus, J.A.; Kubilis, P.S.; Gelatt, K.N.
Journal of the American Veterinary Medical Association 209(1): 105-111
1996
ISSN/ISBN: 0003-1488 PMID: 8926189 Document Number: 463700
Medical records of 88 dogs that had cataract surgery between February 1992 and July 1993 were reviewed to examine the incidence of postoperative ocular hypertension (POH). The incidence of POH with intraocular pressure (IOP) >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 h. Eyes that had phacoemulsification developed POH significantly more rapidly (mean, 3.9 h) than those that had extracapsular lens extraction (8.4 h). 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. It is concluded that close monitoring of IOP in the first 12 h after surgery is important to prevent POH in dogs undergoing cataract surgery.