冷热试验眼震的固视抑制失败及眼球运动异常。

Failure of fixation suppression of caloric nystagmus and ocular motor abnormalities.

作者信息

Sato Y, Kato I, Kawasaki T, Mizukoshi K, Hayano M

出版信息

Arch Neurol. 1980 Jan;37(1):35-8. doi: 10.1001/archneur.1980.00500500065009.

DOI:10.1001/archneur.1980.00500500065009

Abstract

Caloric nystagmus is substantially suppressed by visual fixation. The degree of suppression of caloric nystagmus is influenced by the condition of visual fixation. We studied the percent reduction in slow-phase velocity of caloric nystagmus by visual fixation and certain abnormalities in optokinetic nystagmus, smooth pursuit, and maintenance of ocular position of gaze in 38 patients with disorders of the CNS. The inability to suppress caloric nystagmus by visual fixation correlated with reduction in optokinetic nystagmus, deficit in smooth pursuit eye movements, and presence of gaze nystagmus. It seems probable that modulation of the vestibulo-ocular reflex is influenced by the same mechanisms that are concerned with optokinetic nystagmus, maintenance of ocular position of gaze, and smooth pursuit eye movements.

摘要

视觉注视可显著抑制冷热性眼震。冷热性眼震的抑制程度受视觉注视状态的影响。我们研究了38例中枢神经系统疾病患者通过视觉注视导致的冷热性眼震慢相速度降低的百分比，以及视动性眼震、平稳跟踪和注视眼位维持方面的某些异常情况。无法通过视觉注视抑制冷热性眼震与视动性眼震减弱、平稳跟踪眼球运动缺陷以及注视性眼震的存在相关。前庭眼反射的调制似乎很可能受到与视动性眼震、注视眼位维持和平稳跟踪眼球运动相关的相同机制的影响。