Intraocular pressure development after cataract surgery: a prospective study in 50 dogs (1998-2000).
OBJECTIVE
To study the course of intraocular pressure (IOP) after cataract surgery in 50 dogs.


METHODS
Prospective study.


METHODS
Fifty dogs without preoperative ocular hypertension were selected for cataract surgery.


METHODS
All dogs underwent cataract surgery: 25 by manual extracapsular extraction and 25 by phacoemulsification. For each dog, intraocular pressure was measured before surgery, and 1, 3, 5, 18 h, 1 week and 1 month post surgery.


RESULTS
No significant difference of mean intraocular pressure between the two surgical methods was observed for each time measurement. Nine dogs had postoperative hypertension (IOP > 25 mmHg) during the first 5 hours post surgery. Incidence of postoperative hypertension was not significantly different with manual extracapsular extraction (16%) vs. phacoemulsification (20%). A decrease of mean IOP was observed 1 h after surgery (8.49 mmHg vs. 10.91 mmHg), then an increase 3 and 5 h post surgery (12.3 and 13.32 mmHg, respectively). At 18 h, 1 week and 1 month post surgery, mean IOP decreased. Mean IOP was 10.38, 10.38 and 8.84 mmHg, respectively.


CONCLUSIONS
In this study incidence of POH is not high. However, a follow-up of IOP in the first hours after cataract surgery is required to avoid complications of the retina and optic nerve and to administer hypotensive treatment if necessary.
Chahory
Sabine
S
Ophthalmology Unit, National Veterinary College of Alfort, 7 avenue du Général De Gaulle, 94700 Maisons-Alfort, France. schahory@aol.com
Clerc
Bernard
B
Guez
Julie
J
Sanaa
Moez
M
D000818:Animals; D002387:Cataract Extraction / Q000009:adverse effects / Q000379:methods / Q000662:veterinary*; D004283:Dog Diseases / Q000453:epidemiology* / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery; D004285:Dogs; D005260:Female; D005602:France / Q000453:epidemiology; D007429:Intraocular Pressure; D008297:Male; D009798:Ocular Hypertension / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology / Q000662:veterinary*; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology / Q000662:veterinary*; D011446:Prospective Studies; D013997:Time Factors