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Cortical visual dysfunction in children: a clinical study
G Dutton1, J Ballantyne, G Boyd
1Vision Assessment Team, Royal Hospital for Sick Children, Glasgow, UK.
Eye (London, England)
|January 1, 1996
Summary
Cerebral cortex damage caused vision problems in most children evaluated. Early identification of cognitive vision disorders is crucial for effective training and rehabilitation.
Area of Science:
- Neuroscience
- Ophthalmology
- Pediatrics
Background:
- Cerebral cortex damage can lead to significant visual impairments in children.
- Assessing visual function in children with brain damage presents unique challenges.
Purpose of the Study:
- To investigate the prevalence and types of visual impairments resulting from cerebral cortex damage in children.
- To categorize complex disorders of cognitive vision and emphasize the need for early detection.
Main Methods:
- Retrospective analysis of 130 children referred to a Vision Assessment Clinic.
- Classification of visual impairments based on clinical assessment, including cortical blindness, cortical visual impairment, and complex cognitive vision disorders.
Main Results:
- 90 out of 130 children had vision impairment due to cerebral cortex damage.
- Cortical blindness occurred in 16 children; 2 exhibited navigational blind-sight.
- Complex cognitive vision disorders, affecting recognition, orientation, depth perception, movement perception, and simultaneous perception, were observed in 20 children.
Conclusions:
- Cerebral cortex damage is a major cause of vision impairment in children.
- Disorders of cognitive vision are diverse and require specific diagnostic approaches.
- Early recognition and intervention are essential for managing visual deficits and implementing training programs.