Một số đặc điểm điện thế kích thích thị giác (VEP) trên trẻ em bình thường lứa tuổi từ 6 đến 14

Visual evoked potentials (VEPs) can provide important diagnostic infomation regarding the functional integrity of the visual system. VEP had used:to studying disease visual system. A study of 50 normal children aged from 6 to 14 with pattern-reversal VEPs elicited by checkerboard stimuli with medium cheacks. Results of VEP showed that The latency of N75, P105, N145 in male and female children groups respectively were 70,92 +/- 4,47 ms and 69,71 +/- 4,26 ms; 102,53 +/- 6,32 ms and 100,74 +/- 5,96 ms; 139,12 +/- 7,01 ms and 138,79 +/- 6,79 ms. Amplitude of N75, PlOD, N145 were 1,95 +/- 0,36 IN and 1,49 +/- 0,41 IN; 7,23 +/- 1,32 IlV and 6,67 +/- 1,54 IlV; 7,49 +/- 2,53 IlV and 6,59 +/- 2,82 IlV. Interval of N75 P100, P100 - N145, N75 - N145 were 31,61 +/- 4,06 ms and 31,02 +/- 3,94 ms; 36,59 +/- 4,54 ms and 38,06 +/- 4,23 ms; 68,15 +/- 5,00 ms and 69,30 +/- 4,88 ms. No statistically significant difference in latency, amplitude and interval of VEP waveforms was noted between right eye and left eyes.