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Boot, F. H.; Pel, J .J. M.; Evenhuis, H. M.; van der Steen, J. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2012
It is generally assumed that children with intellectual disabilities (ID) have an increased risk of impaired visual information processing due to brain damage or brain development disorder. So far little evidence has been presented to support this assumption. Abnormal visual orienting behavior is a sensitive tool to evaluate impaired visual…
Descriptors: Visual Impairments, Down Syndrome, Cerebral Palsy, Visual Acuity
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Boot, F. H.; Pel, J. J. M.; van der Steen, J.; Evenhuis, H. M. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2010
The current definition of Cerebral Visual Impairment (CVI) includes all visual dysfunctions caused by damage to, or malfunctioning of, the retrochiasmatic visual pathways in the absence of damage to the anterior visual pathways or any major ocular disease. CVI is diagnosed by exclusion and the existence of many different causes and symptoms make…
Descriptors: Partial Vision, Neurological Impairments, Objective Tests, Pathology