Visual function in autism spectrum disorders: a critical review

Abstract

Studies have shown considerable evidence of visual dysfunction in autism spectrum disorders. Anomalies in visual information processing can have a major effect on the life quality of individuals with autism spectrum disorders. We summarise the hypotheses and theories underlying neural aetiologies and genetic factors that cause these disorders, as well as the possible influences of unusual sensory processing on the communications and behaviour characterised by the autistics. In particular, we review the impact of these dysfunctions on visual performance.

Key words:

• autism spectrum disorders
• colour vision
• neural processing
• vision tests
• visual acuity
• visual performance
• visual search