MEASUREMENT OF INTRAOCULAR PRESSURE USING REBOUND TONOMETRY IN ANESTHETIZED PERUVIAN FUR SEALS (ARCTOCEPHALUS AUSTRALIS) FROM PUNTA SAN JUAN, PERU

• DOI: 10.1638/2020-0222
• Publication Date: 2021-12-16T07:06:29Z
• Authors: Lauren P. Kane; Michael J. Adkesson; Julie D. Sheldon; Matthew C. Allender; Gwen Jankowski; Susana Cárdenas-A...
• Keywords: Applanation tonometry; Univariate analysis

Ocular disease in pinnipeds under human care is well described, and intraocular pressure (IOP) can be impacted by a variety of ophthalmic conditions. Species-specific reference parameters from clinically normal animals are instrumental for understanding how diseases may impact ocular pressures. IOP measurements were obtained using rebound tonometry free-ranging Peruvian fur seals (Arctocephalus australis unnamed subspecies) at Punta San Juan, Peru, over 6-yr period (2010-2016). Retrospective data 108 (81 adults 27 neonates comprising 69 females 39 males) anesthetized with anterior segment examinations was included the analysis. Differences each eye compared to categorical variables (age, year, sex, restraint) an independent-samples t test. All univariate results significance P < 0.05 multivariate Of 13 general linear models evaluated, top two both right left age class when all evaluated simultaneously. Neonates had significantly lower values than (17.5 mm Hg; 95% confidence interval [CI]: 14.0-21.1 Hg 33.5 CI: 31.0-36.1 Hg, respectively) (18.4 14.4-22.5 32.3 29.3-35.3 respectively). Anesthesia method not statistically significant (P > 0.05). This first report any seal species. Described used improve diagnosis management alterations pinnipeds.