Banca de DEFESA: ANA IRIS DE ARAUJO BATISTA

INTRAOCULAR PRESSURE, OPHTHALMIC CLINICAL PARAMETERS AND

ELECTRORETINOGRAPHICS OF Caiman Latirostris

Caiman, ocular electrophysiologist, tonometry

The yellow-snouted alligator (Caiman latirostris) is a crocodilian reptile of the family Alligatoridae and genus Caiman. It is widely distributed throughout the southeast of South America, occurring in any ecosystem associated with water in the basins of the Paraná, Paraguay, Uruguay and São Francisco rivers, being common from the extreme east of Brazil to Uruguay. It also occurs in coastal ecosystems such as mangroves. The objective was to record the full-field electroretinogram in Caiman Latirotris, analyzing the retinal electrical response in a photopic environment and intraocular pressure by rebound tonometry in 18 eyes (9 animals). Mean intraocular pressure values were 10.0 ± 3.0 mmHg. The values obtained for the implicit time of waves a and b were 37.3  ±  4.4 and 74.8  ± 13.3 milliseconds, respectively, with amplitudes of a -14.7  ± 10.7 μV and b 42.5  ± 19.9 μV. All values were obtained without anesthetic restriction, making it possible to obtain data on all animals only with physical restraint.