advertisement
Abstract #8422 Published in IGR 5-1
Intraocular pressure and tear production in five herbivorous wildlife species
Ofri R; Horowitz IH; Raz D; Shvartsman E; Kass PHVeterinary Record 2002; 151: 265-268
The intraocular pressure (IOP) and rate of tear production were measured in 18 addax antelopes (Addax nasomaculatus), four impalas (Aepyceros melampus), 11 wide-lipped rhinoceroses (Ceratotherium simum), ten white-tailed wildebeests (Connochaetes gnou), and seven scimitar-horned oryxes (Oryx dammah). The animals were anesthetized with an intramuscular injection of etorphine hydrochloride and acepromazine maleate, and the Schirmer tear test I was used to evaluate tear production, and applanation tonometry was used to evaluate the intraocular pressure. The mean (SD) rate of tear production ranged from 17.6 (3.1) mm/minute in the rhinoceros to 28.8 (8.3) mm/minute in the addax. The IOP ranged from 8.0 (1.2) mmHg in the impala to 32.1 (10.4) mmHg in the rhinoceros. The rate of tear production in the addax and the IOP in the rhinoceros appear to be the highest values of these variables to have been reported in any species.
Dr. R. Ofri, Koret School of Veterinary Medicine, Hebrew University of Jerusalem, Rehovot, Israel
Classification:
5 Experimental glaucoma; animal models
