Jan J E, Groenveld M, Sykanda A M
Division of Child Neurology, University of British Columbia, Canada.
Dev Med Child Neurol. 1990 Sep;32(9):755-9. doi: 10.1111/j.1469-8749.1990.tb08478.x.
This study assessed the prevalence and characteristics of light-gazing by all visually impaired children referred during a 2 1/2-year period. Light-gazing (compulsive staring into lights) is one of the many clinical signs of cortical visual impairment (CVI), and in the present study it occurred in 60 per cent of children with CVI. The authors believe that light-gazing by any child with ocular lesions indicates some degree of CNS involvement. Visually impaired children who flicker their fingers in front of their eyes against a light source demonstrate an extension of this compulsive behaviour. This and other studies suggest that blind mannerisms have specific neuropathological substrata and therefore are useful clinical signs.
本研究评估了在2年半时间内转诊的所有视力受损儿童中凝视灯光的发生率及特征。凝视灯光（强迫性盯着灯光）是皮质视觉障碍（CVI）的众多临床体征之一，在本研究中，60%的CVI儿童出现了这种情况。作者认为，任何有眼部病变的儿童出现凝视灯光表明中枢神经系统有一定程度的受累。视力受损儿童在光源前在眼前摆动手指，这是这种强迫行为的一种延伸。这项研究及其他研究表明，盲态有特定的神经病理学基础，因此是有用的临床体征。
