Bronstein A M
MRC Human Movement and Balance Unit, Institute of Neurology, National Hospital for Neurology and Neurosurgery, London, UK.
J Neurol Neurosurg Psychiatry. 1995 Nov;59(5):472-6. doi: 10.1136/jnnp.59.5.472.
Neuro-otological and posturography findings in 15 patients with visually induced vertiginous symptoms (visual vertigo) are reported. Thirteen patients were considered to have a peripheral vestibular disorder; seven had abnormal caloric or rotational test results. Two patients had CNS disorder--a cerebellar degeneration and a brainstem stroke. Posturography testing showed that five patients showed abnormally large body sway induced by full field visual motion stimulation. This group included the two patients with CNS disease and four with strabismic symptoms (diplopia, squint surgery, and ocular muscle weakness). It is concluded that visual vertigo is a heterogeneous syndrome with peripheral or central aetiologies and may occur if patients with balance disorders show high visual field dependence. In patients with visual vertigo, the presence of additional CNS or strabismic symptoms may cause inappropriate postural reactions in environments with conflicting or disorienting visual stimuli, probably by reducing the ability to resolve the sensory conflict.
报告了15例有视觉诱发性眩晕症状（视觉性眩晕）患者的神经耳科学和姿势描记法检查结果。13例患者被认为患有外周前庭疾病；7例冷热试验或旋转试验结果异常。2例患者患有中枢神经系统疾病——小脑变性和脑干中风。姿势描记法测试显示，5例患者在全视野视觉运动刺激下出现异常大幅度的身体摆动。该组包括2例患有中枢神经系统疾病的患者和4例有斜视症状（复视、斜视手术和眼肌无力）的患者。得出的结论是，视觉性眩晕是一种具有外周或中枢病因的异质性综合征，如果平衡障碍患者表现出高度的视野依赖性，就可能发生。在视觉性眩晕患者中，额外的中枢神经系统或斜视症状的存在可能会在视觉刺激相互冲突或使人迷失方向的环境中导致不适当的姿势反应，这可能是通过降低解决感觉冲突的能力来实现的。
