Abstract
The aim of this study was to evaluate the ophthalmic parameters of Amazona amazonica and Amazona aestiva maintained in captivity in Salvador, Bahia, Brazil. Median ± S-IQR phenol red thread test was 21.9 ± 2.3mm/15s and 12.6 ± 2.6mm/15s, endodontic absorbent paper point tear test 14.9 ± 1.6mm/min and 13.1 ± 1.4mm/min, and intraocular pressure 8.3 ± 1.1mmHg and 9.7 ± 1.7mmHg for A. amazonica and A. aestiva, respectively. Corneal sensitivity was 0.50 ± 0.25cm for A. amazonica and 1.00 ± 0.00cm for A. aestiva. The mean ultrasonographic dimensions measured were anterior chamber depths of 2.0 ± 0.1mm and 2.0 ± 0.1mm, lens axial lengths of 3.6 ± 0.0mm and 3.6 ± 0.1mm, vitreous chamber depths of 7.9 ± 0.4mm and 8.0 ± 0.2mm, axial globe lengths of 13.5 ± 0.4mm and 13.6 ± 0.1mm, and pecten oculi lengths of 6.4 ± 0.5 and 6.3 ± 0.3mm for A. amazonica and A. aestiva, respectively. The development of complementary knowledge about the ocular morphology and histology of these parrot species can be used to contribute to advances in the ophthalmology of wild birds.
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