Abstract
Background: Quantification of main sequence is required for three-dimensional recording and analysis of eye movement using video-oculography. However, the main sequence of torsional saccade has not been reported to the best of our knowledge.
Aims/objectives: To obtain characteristics of torsional saccade using infra-red video-oculography, and to analyse the main sequence.
Material and methods: Torsional saccades of 10 healthy subjects were extracted from torsional vestibulo-ocular reflex from voluntary head rotation. Angular velocities were plotted against amplitude of each saccade to obtain the main sequence of torsional saccade.
Results: Main sequence of torsional saccade demonstrated non-linear characteristic. The adduction amplitude was significantly larger than abduction, while there was no significant difference in time constants.
Conclusions and significance: Torsional saccade demonstrates non-linear characteristic, similar to main sequence of vertical and horizontal saccades.
背景:使用视频眼图进行三维记录和眼球运动分析需要对主序列进行定量。然而, 据我们所知, 还没有关于扭转扫视的主序列的报道。
目的:使用红外视频眼图获得扭转扫视的特征, 并分析主序列。
材料和方法:从自主头部旋转的扭转性前庭眼反射中获取10名健康受试者的扭转扫视。针对每个扫视的振幅绘制角速度图, 以获得扭转扫视的主序列。
结果:扭转扫视的主序列表现出非线性特征。内收幅度明显大于外展幅度, 而时间常数无显著差异。
结论和意义:扭转扫视显示出类似于垂直和水平扫视的主序列的非线性特征。
Disclosure statement
The authors report no conflict of interest. The authors alone are responsible for the content and writing of the article.