Effect of refractive error on visual evoked potentials with patternstimulation in dogs

[摘要] References(15)The purpose of this study was to investigate the effects of refractive error on caninevisual evoked potentials with pattern stimulation (P-VEP). Six normal beagle dogs wereused. The refractive power of the recorded eyes was measured by skiascopy. The refractivepower was corrected to �?4 diopters (D) to +2 D using contact lens. P-VEP was recorded ateach 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 Dcompared with �?2 D, respectively. We concluded that the refractive power of the eyeaffected the P100 implicit time in canine P-VEP recording.

[学科分类] 兽医学

[关键词] canine;P100 implicit time;pattern stimulated visual evoked potential;refractive power