一名大脑半球切除术患者的动眼和眼前庭功能

Oculomotor and oculovestibular functions in a hemispherectomy patient.

作者信息

Estañol B, Romero R, Sáenz de Viteri M, Mateos J H, Corvera J

出版信息

Arch Neurol. 1980 Jun;37(6):365-8. doi: 10.1001/archneur.1980.00500550067009.

DOI:10.1001/archneur.1980.00500550067009

Abstract

Oculomotor and oculovestibular functions in a patient who had undergone a left hemispherectomy were examined under a variety of visual and vestibular stimuli. The main findings were an inability to hold left eccentric gaze, resulting in gaze-evoked nystagmus to that side; inaccurate saccades to the right; defective smooth pursuit to the left; asymmetrical vestibulo-ocular responses (VOR) in the dark due to the interaction of the VOR with the "spasticity of conjugate gaze", decreased gain of the visuo-vestibulo-ocular reflexes to both sides, more marked to the right, when rotated fixating on a stationary wall target or the environment, due to abnormal smooth and optokinetic systems; and failure to inhibit the VOR when rotated to the left with visual fixation.

摘要

对一名接受了左侧大脑半球切除术的患者，在多种视觉和前庭刺激下检查了其动眼和眼前庭功能。主要发现包括：无法维持左侧偏心注视，导致向该侧出现凝视诱发的眼球震颤；向右的扫视不准确；向左的平稳跟踪存在缺陷；由于前庭眼反射（VOR）与“共轭凝视痉挛”的相互作用，在黑暗中前庭眼反应不对称；当注视固定在静止的墙壁目标或环境上旋转时，双侧视-前庭-眼反射的增益降低，右侧更明显，这是由于平稳和视动系统异常所致；以及在视觉固定状态下向左旋转时无法抑制前庭眼反射。