RESUMO
O potencial visual evocado por padrão reverso (PVE-PR) é um método objetivo, não invasivo e estabelecido para as investigações funcionais. Este trabalho teve como objetivo a obtenção de dados do PVE-PR com tabuleiro de xadrez em gatos (16', 32', 64', 130' e 260'de arco
Palavras-chave: felinos, teste eletrofisiológico, oftalmologia.
ABSTRACT
The pattern reversal visual evoked potential (PR-VEP) is an objective method, stablished for noninvasive functional investigations. This research aimed to obtain data from the PR-VEP with checkerboard in adult domestic cats and the influence of different visual angles on the peak latency and implicit time ofwaves N75 and P100. It was used 13 adult cats (2-4 years old), of both sexes. Each animal was positioned 100 cm away from a video monitor located at 17.2º. The stimulus generated for the formation of wave VEPs was "square" with the frequency of 6Hz, presented in five spatial frequencies (16 ', 32', 64 ', 130' and 260 'of arc).
Mean values of implicit times (ms) and amplitudes (µvolts) of P100were not statistically different and were not correlated (r=0.067
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