정상 소아의 시각유발전위 참고치

Abstract

Objectives: To establish the reference range of latency values in pediatric patients according to their age. Methods: Visual evoked potential was performed on children between age 0 and 10, diagnosed with unilateral amblyopia at GangNam Severance Hospital between January 2005 and December 2008. Latency values for N1, P1, N2, P2, N3 were measured for the intact and the amblyopian eye. Results: For the intact eye the mean values of latency of were N1=31.6 ms, P1=50.8 ms, N2=80.0 ms, P2=113.3 ms, N3=160.3 ms and for the amblyopian eye they were N1=35.4 ms, P1=56.1 ms, N2=81.1 ms, P2=113.8 ms, N3=160.8 ms. There were no significant differences between the intact eye and the amblyopian eye. Compared to the normal values in adults, the mean values of latency was shorter for N1 and P1, and longer for N2, P2, and N3. These differences were statistically significant. Conclusion: This study showed that reference values of latency in visual evoked potential were different in children compared to the values in adults.