Hainline L, Abramov I
J Am Optom Assoc. 1985 Aug;56(8):620-6.
Developmental studies of infant eye movements may be a useful tool in the early diagnosis of visual abnormalities. We have measured saccades made by infants during the free scanning of stimuli differing in attentional value. When viewing stimuli with high attentional value, infants made saccades that had adult-like peak velocity/amplitude (main sequence) relationships, while for less interesting stimuli, their saccades were slower; saccadic oscillations were also more frequent for these stimuli. In studies of small-field horizontal and vertical optokinetic nystagmus, with binocular viewing, infants' horizontal OKN was of higher frequency and lower amplitude than their vertical OKN. Within vertical OKN, there was a clear asymmetry with reduced responsiveness to downward moving stimuli. This asymmetry declined for older infants; possible interpretations for this change are discussed.
婴儿眼动的发育研究可能是早期诊断视觉异常的有用工具。我们测量了婴儿在自由扫描具有不同注意力价值的刺激时所做出的扫视。当观看具有高注意力价值的刺激时，婴儿做出的扫视具有类似成人的峰值速度/幅度（主序列）关系，而对于不太有趣的刺激，他们的扫视较慢；这些刺激的扫视振荡也更频繁。在小视野水平和垂直视动性眼震的研究中，双眼观看时，婴儿的水平视动性眼震比垂直视动性眼震频率更高、幅度更低。在垂直视动性眼震中，对向下移动刺激的反应性明显不对称且降低。这种不对称在较大婴儿中有所下降；讨论了这种变化的可能解释。
