Jan J E, Groenveld M, Connolly M B
Department of Paediatrics, University of British Columbia, Vancouver.
Dev Med Child Neurol. 1990 Dec;32(12):1061-6. doi: 10.1111/j.1469-8749.1990.tb08524.x.
Rapid, horizontal, pendular head oscillations were observed in 18 visually impaired children with nystagmus during intense visual fixation, and the characteristics of this behaviour were analysed. Head tilting and eye deviations also occurred in 14 of the children. Their symptoms and signs resembled spasmus nutans. Head shaking appeared to be a voluntary, learned, neurovisual adaptation to improve visual acuity. Accurate simultaneous recordings of eye and head movements are required to understand the pathophysiological significance of these head oscillations.
在18名患有眼球震颤的视力受损儿童进行强烈视觉注视时，观察到快速、水平、摆动性头部振荡，并对这种行为的特征进行了分析。14名儿童还出现了头部倾斜和眼球偏斜。他们的症状和体征类似于痉挛性斜颈。头部摇晃似乎是一种为提高视力而进行的自主、习得的神经视觉适应。需要同时准确记录眼睛和头部运动，以了解这些头部振荡的病理生理意义。
