Artikel
Blind sight: occipital cortex development in blind children
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Autoren
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N. Boyle
- Fellow Paediatric and Strabismus Service Moorfields Eye Hospital, London, UK
| Veröffentlicht: | 22. September 2004 |
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Gliederung
Text
Aim
Damage to the occipital lobe of the brain results in hemianopia when unilateral and blindness when bilateral. In some cases however a degree of visual function persists in the blind visual field. We aim to describe this phenomenon of blindsight in a cohort of brain damaged children and to relate the clinical features to their visual evoked potential results.
Methods
A retrospective analysis of 541 case records of children referred to a tertiary vision assessment clinic in the Royal Hospital for Sick Children, Glasgow from 1992 to 2002 was carried out.
Results
In 19 blind and 4 hemianopic children evidence of perception of movement in the blind visual field was found and is described. Flash visual evoked potentials varied from no response to normal and did not correlate with visual behaviour.
Conclusions
Recognition, detection and usage of this phenomenon in children is vital to their rehabilitation and interaction with their surroundings.
