ABSTRACT
OBJECTIVE: To investigate the ophthalmic parameters of lowland pacas, including the anatomic features, tear production, intraocular pressure, central corneal thickness, and morphology of the corneal endothelium. ANIMALS STUDIED: Thirteen adult, anesthetized Cuniculus paca. PROCEDURE: Eyes were evaluated using slit-lamp biomicroscopy, the Schirmer tear test I, digital applanation tonometry, binocular indirect ophthalmoscopy, and noncontact specular microscopy. RESULTS: The biomicroscopy findings showed blue/brown pigmented bulbar conjunctivae, well-developed cilia (only in the upper eyelid margin), superior and inferior lacrimal puncta, brown irides, round pupils, and vestiges of the nictitating membrane. The results of the Schirmer tear test I revealed (mean ± SD) a lacrimation rate of 4.10 ± 0.44 mm/min. The intraocular pressure was 6.34 ± 0.43 mmHg. Central corneal thickness measured by specular microscopy was 0.35 ± 0.01 mm. The mean values of density, hexagonality, and the area of the endothelial cells were 2083.15 ± 42.47 cells/mm2 , 67.07 ± 3.30%, and 486.30 ± 9.56 µm2 , respectively. CONCLUSIONS: The ocular parameters defined in this study may be used for reference in future studies and might also contribute to therapeutic approaches appropriate to this species.
Subject(s)
Cornea/physiology , Cuniculidae/physiology , Ocular Physiological Phenomena , Tears/physiology , Animals , Animals, Zoo , Female , Intraocular Pressure/physiology , Male , Ophthalmoscopy/veterinary , Reference Values , Tonometry, Ocular/veterinaryABSTRACT
The aim of this study was to determine the seroprevalence, clinical and biochemical profile of Leishmania chagasi infection in dogs naturally infected and identify the phlebotominae fauna in an endemic area of São Luis Island. In this present study, 62 household mongrel dogs were sampled for antibodies anti-Leishmania. The seroprevalence was 51.61%. In the clinical evaluation, 36.68% dogs were symptomatic, 38.41% were oligosymptomatic and 26.13% were asymptomatic. The most frequent signs were onychogryphosis and lymphadenomegaly. In 29.41% animals were observed anemia. In the biochemical analysis hepatic function showed changes in relation to alaninoaminotransferase (ALT) and aspartato aminotransferase (AST). Urea values were higher than the references ones for canine specie. The following phlebotominae sandflies were identified: Lutzomyia longipalpis (86.9%), L. evandroi (9.6%), L. choti (2.1%), L. umbratilis (0.7%) e L. whitmani (0.7%).
