Dr.Sahithya Bhaskaran, B16474
The study is aimed at assessing functional vision in children with autism spectrum disorder (ASD) with a cognitive visual function battery in addition to standard ophthalmic examinations.Thirty children with ASD were included. A comprehensive ophthalmic examination and cognitive vision assessment was performed.The distribution of children with mild to moderate versus severe ASD was nearly equal. The majority of the 30 children had normal color vision, shape discrimination, contrast, shape discrimination and perception of directionality. Most were not able to identify optical illusions or differentiate emotions. Ocular pursuits, saccades, and recognition of size differences were often abnormal.The duration of fixation to Heidi target was inversely proportional to the severity of ASD. The study further established that cognitive visual impairment was present in children with ASD irrespective of their severity of ASD.
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