Effect of refractive error on visual evoked potentials with pattern stimulation in dogs
| Autor: | Tsuyoshi Uchide, Ai Matsui, Akira Kubo, Yoshiki Itoh, Yosuke Ito, Miri Hayashi, Seiya Maehara |
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| Rok vydání: | 2016 |
| Předmět: |
Male
Refractive error genetic structures P100 implicit time 040301 veterinary sciences canine Optical power Visual evoked potentials Stimulus (physiology) pattern stimulated visual evoked potential 0403 veterinary science 03 medical and health sciences Dogs 0302 clinical medicine Internal Medicine medicine Animals Dog Diseases Dioptre Retinoscopy Physics General Veterinary medicine.diagnostic_test 04 agricultural and veterinary sciences Refractive Errors Note medicine.disease Contact lens Pattern Recognition Visual Pattern stimulation refractive power 030221 ophthalmology & optometry Evoked Potentials Visual Female Biomedical engineering |
| Zdroj: | The Journal of Veterinary Medical Science |
| ISSN: | 1347-7439 0916-7250 |
| DOI: | 10.1292/jvms.15-0227 |
| Popis: | The purpose of this study was to investigate the effects of refractive error on canine visual evoked potentials with pattern stimulation (P-VEP). Six normal beagle dogs were used. The refractive power of the recorded eyes was measured by skiascopy. The refractive power was corrected to −4 diopters (D) to +2 D using contact lens. P-VEP was recorded at each refractive power. The stimulus pattern size and distance were 50.3 arc-min and 50 cm. The P100 appeared at almost 100 msec at −2 D (at which the stimulus monitor was in focus). There was significant prolongation of the P100 implicit time at −4, −3, 0 and +1 D compared with −2 D, respectively. We concluded that the refractive power of the eye affected the P100 implicit time in canine P-VEP recording. |
| Databáze: | OpenAIRE |
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