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Intraocular pressure development after cataract surgery: a prospective study in 50 dogs (1998-2000).

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Article
H

Chahory, Sabine ; Clerc, Bernard ; Guez, J. ; Sanaa, Moez

Veterinary ophthalmology

Ophthalmology Unit, National Veterinary College of Alfort, 7 avenue du General De Gaulle, 94700 Maisons-Alfort, France.

2003

Article

AB: Objective: To study the course of intraocular pressure (IOP) after cataract surgery in 50 dogs. Design: Prospective study. Animals: 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. Conclusion: 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.
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