ĐẶC ĐIỂM ĐIỆN THẾ KÍCH THÍCH THỊ GIÁC Ở TRẺ EM NHƯỢC THỊ DO LÁC TRONG ĐIỀU TIẾT TOÀN PHẦN VÀ DO TẬT KHÚC XẠ

Abstract

Background: Visual evoked potentials (VEPs) can Provide important diagnostic : infomation regarding the functional integrity of the visual system, VEP had used to study disease of visual pathway. Objectives: Identify latencies and amplitudes of VEP in | Strabismic children and compare to those of anisometric children and nomal children. | Subjects and methods: PVEP were recorded simultaneously in 97 amplyopia patients | (47 strabismic amblyopia chitdren, 50 anisometropic amplyopia and 50 normal childrenas | contro! subjects). Results: Latencies of Nis, Pigg, Nias amblyopic eye in strabismic ị amblyopia groups and anisometropic 8mplyop¡a were 79 6 5 1m ˆ 514,8 + 6.6 ms and 116,9 + 6,8 ms: 158 52g72 05 and 80,7 + 61 ms | P © eye in strabien gt 5⁄9 ms and 1820 y 1 ms. Amplitude of Nix 100 Nias of amblyopic eye In strabismic amblyopia groups ang ae pe hop lễ respectively were 1,8 + 2,7 WV and 35420 HV: 63 +53 Wile TP ee 6+ | 6,3UV and 87 + 38 W. The latencies in pvgp prolong EM and 7,4 + 5,9 yV: 7, : 4 children. However, the amplitudes reduce only in anisom lu in both group of amplyopi