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眼球运动有扫视和跟踪两种因素。扫视为眼球运动的快成份,跟踪运动为慢成份。引起扫视运动有随机和持续两种刺激。持续刺激时可能有预示适应性而影响扫视。本文目的为弄清预示适应对扫视,尤其对水平扫视的影响。作者对20名18～43岁正常健康成人以计算机-控制系统和眼电图仪进行刺激、记录和测量打印,检查随机扫视和持续扫视的潜伏期、最大和平均速率。结果:(1)随机和持续扫视运动的平均速度相同。持续扫视的最大速度稍快,潜伏期稍长,但无明显差异。(2)单眼记录两者的扫视内收速度比外展速度快但潜伏期相同。(3)视角变大至30°扫视最大速度成线性增加,视角变大至20°平均速度线性增加,超过此角度则增加轻微。
Eye movements have glance and tracking two factors. Glancing fast component of eye movement, tracking movement for slow ingredients. Cause glaucoma movements have random and sustained two stimuli. Continued stimulation may indicate flexibility and affect the glance. The purpose of this paper is to understand the effects of predictive adaptation on saccade, especially for horizontal saccade. The authors stimulated 20 computer-controlled systems and electrooculographs with normal healthy adults aged 18-43 years to record and measure prints, and to examine latency, max and average rates for both random and continuous glaucoma. Results: (1) The average speed of random and continuous saccade was the same. The maximum speed of continuous glaucoma slightly faster, slightly longer incubation period, but no significant difference. (2) Monocular recording both saccade adduction speed faster than the abduction but the same incubation period. (3) The angle of view increases to 30 °. The maximum velocity of the saccade increases linearly, and the angle of view increases to 20 °. The average velocity increases linearly and beyond this angle increases slightly.