Adduction-Abduction Asymmetry in Saccades During Video-Oculographic Monocular Recording: A Word of Caution

IF 0.8 Q4 CLINICAL NEUROLOGY

Neuro-Ophthalmology Pub Date : 2019-04-04 DOI:10.1080/01658107.2018.1555852

Koji Takahashi, O. Tanaka, Y. Kudo, E. Sugawara, K. Johkura

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引用次数: 2

Abstract

ABSTRACT In eye movement examination, video-oculographic monocular recording has become more popular than electro-oculographic binocular recording. The aim of this study was to examine the characteristics of monocular movements recorded using video-oculography. In 66 healthy subjects, the horizontal saccades and smooth pursuit eye movements of the right eye within a range of 30º were evaluated using a video-oculographic eye movement recording system. Saccade latency, velocity, accuracy, and smooth pursuit gain were measured and analysed by age and direction. Saccade parameters (latency, velocity, and amplitude) and smooth pursuit gain deteriorated with age in healthy subjects. Saccade velocity and accuracy were significantly larger during adduction than during abduction. The smooth pursuit gain did not differ between adduction and abduction. In conclusion, unlike smooth pursuit eye movements, saccadic eye movements have adduction-abduction asymmetry. In video-oculographic monocular recording of saccades, it is necessary to recognise the possibility of the existence of adduction-abduction asymmetry.

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内收外展不对称的跳眼视频-眼位单目记录:一个警告

在眼动检查中，眼电单目记录比眼电双目记录更受欢迎。本研究的目的是检查使用视频视觉术记录的单眼运动的特征。采用眼动视频记录系统，对66名健康受试者在30º范围内的右眼水平扫视和平滑追视运动进行了评价。通过年龄和方向测量和分析眼动潜伏期、速度、精度和平滑追踪增益。在健康受试者中，眼跳参数(潜伏期、速度和振幅)和平滑追求增益随着年龄的增长而恶化。内收时的扫视速度和准确性明显大于外展时。内收和外展的平滑追求增益无差异。综上所述，与平滑的眼球运动不同，跳眼运动具有内收外展不对称性。在单目视像眼动记录中，有必要认识到内收外展不对称存在的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Neuro-Ophthalmology 医学-临床神经学

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Neuro-Ophthalmology publishes original papers on diagnostic methods in neuro-ophthalmology such as perimetry, neuro-imaging and electro-physiology; on the visual system such as the retina, ocular motor system and the pupil; on neuro-ophthalmic aspects of the orbit; and on related fields such as migraine and ocular manifestations of neurological diseases.