方法：对30例急性病毒性脑炎患者(年龄5～12岁)，疾病最初显现的12d内视觉诱发电位(VEP)进行调查。在急性病毒性脑炎患者和水痘蜱传脑炎患者之间比较P₁₀₀峰潜伏期及振幅。

结果：两种形式脑炎患儿之间无显着差异。研究对象组中，40%的患者表现出视觉皮层功能障碍(P₁₀₀振幅降低)，沿视觉通路(P₁₀₀潜伏期延长)电导率温和放缓的迹象。

结论：研究发现，视觉通路对病毒性脑炎有很强的耐受性。功能性视皮层对该疾病的抵抗力低。

METHODS: Thirty patients(age 5-12 years)with acute viral encephalitis underwent visual evoked potentials(VEP)investigation within 12 days from the appearance of the first signs of disease. Latency and amplitude of P₁₀₀ peak were compared with normative data and between patients with varicella and tick-borne encephalitis.

RESULTS: There were no significant differences between children with these two forms of encephalitis. In the whole group in 40% of the cases signs of the visual cortex dysfunction(P₁₀₀ amplitude lowering)and mild slowing of the conductivity along the visual pathways(P₁₀₀ latency lengthening)were seen. In 3% of the cases retrobulbar optic neuritis was diagnosed.

CONCLUSION:The results indicate that visual pathway have good endurance to the viral encephalitis anatomically, but functionally visual cortex is quite vulnerable towards general disturbances caused by this kind of illness.