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Year 2011 - Volume 31, Number 4
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Evaluation of tear production with modified Schirmer tear test-1 during the neonatal period in cats, 31(4):350-354
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ABSTRACT.- Conceição L.F., Ribeiro A.P., Torres M.L.M., Lourenço M.L.G. & Laus J.L. 2011. Evaluation of tear production with modified Schirmer tear test-1 during the neonatal period in cats. Pesquisa Veterinária Brasileira 31(4):350-354. Departamento de Clínica e Cirurgia Veterinária, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Via de Acesso Professor Paulo Donato Castellane s/n, Jaboticabal, SP 14870-000, Brazil. E-mail: jllaus@fcav.unesp.br
The study aimed to evaluate tear production by means of modified Schirmer tear tes-1 (mSTT-1) in neonate cats. Likewise, correlation between mSTT-1 and STT-1 was assessed in vitro. Standard SST strips were cut in half and after eye lid opening, tear production of neonates (n=15) was daily measured in both eyes (mSTT-1), until the 7th day, and at day 14, 21, and 28. Animals were daily weighted until 28 days of age. Results were compared statistically (P<0.05). During the first 7 days, the overall mSTT-1 mean was 0.76 wetting/minute. Significant differences between right and left eyes were not observed at any time point (P=1.00). Tear secretion increased significantly, from the 14th to 28th day, in comparison with 7 first days (P<0.05). Positive correlation between maturity parameters and tear secretion was observed (P<0.0001). Distance between slopes of each strip changed significantly (P<0.0001). It was concluded that tear secretion in the neonatal period of cats is very below the reference values described for young and adults of the same species. It is not possible to extrapolate results obtained with mSTT-1 to standard STT-1. |
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