Ophthalmic diagnostic tests, orbital anatomy, and adnexal histology of the broad‐snouted caiman (Caiman latirostris)
- 31 October 2013
- journal article
- research article
- Published by Wiley in Veterinary Ophthalmology
- Vol. 18 (s1), 30-39
- https://doi.org/10.1111/vop.12115
Abstract
Purpose The aim of this study was to establish normal ophthalmic parameters for selected diagnostic tests, and to describe the orbital anatomy and adnexal histology of the broad‐snouted caiman. Method A total of 35 Caiman latirostris that were free of obvious ocular diseases were used to measure the parameters in this investigation. Ages ranged from 5 to 15 years. Ophthalmic diagnostic tests were conducted, including evaluation of tear production with Schirmer Tear test‐1 (STT1), culture of the conjunctival bacterial flora, applanation tonometry, conjunctival cytology, nictiating membrane incursion frequency test (NMIFT), endodontic absorbent paper point tear test (EAPPTT), palpebral fissure length measurement (PFL) and B‐mode ultrasonography. Adnexal histology and skull samples were studied. Results Mean (±SD) STT1 was 3.4 ± 3.6 mm/min (95% confidence interval of 2.01–4.78 mm/min), intraocular pressure (IOP) was 12.9 ± 6.2 mmHg, NMIFT was 6.0 ± 3.5, EAPPTT was 17.1 ± 2.5 mm/min, PFL was 28.9 ± 3.0 mm, anterior chamber depth was 3.1 ± 0.3 mm, lens axial length was 8.4 ± 0.6 mm, vitreous chamber depth was 7.9 ± 0.7 mm and axial globe length was 19.9 ± 1.3 mm. For all animals evaluated, Bacillus sp., Diphteroids and Staphylococcus sp. were predominant.Keywords
This publication has 41 references indexed in Scilit:
- Intraocular pressure and Schirmer tear test results in clinically normal Long‐Eared Hedgehogs (Hemiechinus auritus): reference valuesVeterinary Ophthalmology, 2011
- Clinical utility of a complete diagnostic protocol for the ocular evaluation of free‐living raptorsVeterinary Ophthalmology, 2011
- The capybara eye: clincial tests, anatomic and biometric featuresVeterinary Ophthalmology, 2008
- Development of the dermal skeleton in Alligator mississippiensis (Archosauria, Crocodylia) with comments on the homology of osteodermsJournal of Morphology, 2008
- Comparison of ophthalmic measurements obtained via high-frequency ultrasound imaging in four species of snakesAmerican Journal of Veterinary Research, 2007
- Normal ocular development in young rhesus monkeys (Macaca mulatta)Vision Research, 2007
- Axial length and optic disc size in normal eyesBritish Journal of Ophthalmology, 2006
- Alligator tears: A reevaluation of the lacrimal apparatus of the crocodiliansJournal of Morphology, 2005
- Ultrasonographic determination of the dimensions of ocular components in enucleated eyes of the one-humped camel (Camelus dromedarius)Research in Veterinary Science, 1999
- Diseases in young farmed crocodiles in Irian JayaVeterinary Record, 1995