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| Faganello,Cláudia Skilhan; Silva,Vanessa Ruiz Moura da; Andrade,Maria Cristina Caldart de; Carissimi,André Silva; Pigatto,João Antonio Tadeu. |
| ABSTRACT: The objective of this study was to evaluate the morphology of different regions of the equine cornea using optical microscopy. Both healthy eyes of eight horses, male or female, of different ages were evaluated. Corneas were stained with alizarin red vital dye and subsequently examined and photographed using optical microscopy. Corneal endothelial morphology of central, superior, inferior, temporal and nasal areas was assessed. One hundred endothelial cells from each corneal area were analyzed. The shape of the corneal endothelial cells of each corneal region was analyzed. Statistical data analysis was conducted using the Student's t test. Values of P<0.01 were considered significant. Regarding morphological analysis, no statistically... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Horses; Corneal endothelium; Pleomorphism; Alizarin red. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202223 |
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| Andrade,Maria Cristina Caldart de; Hünning,Paula Stieven; Pereira,Fabiana Quartiero; Dutra,Kadigia Pitol; Pigatto,João Antonio Tadeu. |
| ABSTRACT: The purpose of this study was to verify the effect of the upper lip twitch restraint on intraocular pressure (IOP) of healthy horses. In this study, forty five Criollo horses, aged between two to 20 years (male or female) were evaluated with rebound tonometer, with and without upper lip twitch restraint. A previous ophthalmic examination was performed with Schirmer tear test, fluorescein test, slit lamp biomicroscopy and direct ophthalmoscopy in all horses. Only healthy animals with no ocular findings were used. The order of the IOP measurements (with or without twitch) and order of the eye (right or left) were randomized. Three measurements of each eye were made and the mean was calculated. Head position was kept above the heart level and no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Equine; Intraocular pressure; Restraint; Tonovet.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000801486 |
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| Brambatti,Gustavo; Albuquerque,Luciane de; Vargas,Eduarda Valim Borges de; Neumann,Carolina Fonseca; Pigatto,João Antonio Tadeu. |
| ABSTRACT: The goal of this study was to describe the normal values of corneal endothelial cell density and hexagonality in healthy rabbits’ eyes using contact specular microscopy. Both eyes of 18 rabbits, males and females, of different ages were evaluated. The eyes were divided into three groups of 12 each according to the age range of the animals: G1 (6 months old), G2 (12 months old), and G3 (48 months old). Parameters studied included mean endothelial cell density and hexagonality. For Group I, the mean cell density was 2307 cells per mm2. For GII, the mean cell density was 1895 cells per mm2. For G III, the mean cell density was 1818 cells per mm2. Cell density decreased significantly with aging (P<0.001) among the three groups. Pleomorphism in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lagomorphs; Corneal endothelial hexagonality; Specular microscope. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200602 |
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| Pigatto,João Antonio Tadeu; Franzen,Angela Aguiar; Pereira,Fabiana Quartiero; Almeida,Ana Carolina da Veiga Rodarte de; Laus,José Luis; Santos,Jaime Maia dos; Guedes,Pedro Mancini; Barros,Paulo Sérgio de Moraes. |
| The aim of this study was to examine the endothelial surface morphology and perform a morphometric analysis of the corneal endothelial cells of ostrich (Struthio camelus) using scanning electron microscopy. Polygonality, mean cell area, cell density and coefficient of variation of mean cell area were analyzed. The normal corneal endothelium consisted of polygonal cells of uniform size and shape with few interdigitations of the cell borders. Microvilli appeared as protusions on the cellular surface. The average cell area was 269±18µm² and the endothelial cell density was 3717±240cells mm-2. The coefficient of variation of the cell area was 0.06, and the percentage of hexagonal cells was 75%. The parameters evaluated did not differ significantly between the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Corneal; Endothelium; Ostrich; Struthio camelus. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000300047 |
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