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Abstract #5639 Published in IGR 2-1
How low can we get? Tonometry in the Thomson gazelle (Gazella thomsoni)
Ofri R; Horowitz IH; Kass PHJournal of Glaucoma 2000; 9: 187-189
PURPOSE: To establish a normal reference range of intraocular pressure (IOP) estimates in Thomson gazelles (Gazella thomsoni). MATERIAL AND METHODS: Applanation tonometry was conducted in 22 eyes of 11 gazelles anesthetized for transportation purposes with a mixture of etorphine hydrochloride and acepromazine maleate. Five sequential readings using a Tono-Pen XL (Mentor Ophthalmics, Inc., Norwell, MA) were obtained from each eye. Results were analyzed for the effect of age, weight, gender, side, and replicate readings, and were compared with estimates in other species. RESULTS: Mean (± standard deviation) IOP estimate in 22 eyes of 11 gazelles was 7.6±1.6 mmHg. None of the variables tested had a significant effect on the results. CONCLUSION: To date, the IOP estimates in the Thomson gazelle are the lowest reported in any species.
Dr. R. Ofri, Koret School of Veterinary Medicine, Hebrew University of Jerusalem, PO Box 12, Rehovot 76100, Israel
Classification:
6.1 Intraocular pressure measurement; factors affecting IOP (Part of: 6 Clinical examination methods)