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Anomalous head posture with early-onset homonymous hemianopia.
1Cullen Eye Institute, Baylor College of Medicine, Texas Children's Hospital, Houston 77030, USA.
Summary
Children with early-onset homonymous hemianopia often exhibit an ipsilateral head turn. This study investigates this association, suggesting early-onset homonymous hemianopia as a diagnosis for anomalous head posture.
Area of Science:
- Neurology
- Ophthalmology
- Pediatrics
Background:
- Anomalous head posture is a common clinical observation in pediatric neurology.
- Early-onset homonymous hemianopia, a visual field defect, has been anecdotally associated with specific head turning behaviors.
Purpose of the Study:
- To investigate the frequent finding of ipsilateral head turn in children with early-onset homonymous hemianopia.
- To propose a theory explaining the association between early-onset homonymous hemianopia and anomalous head posture.
Main Methods:
- Examined ten pediatric patients diagnosed with early-onset homonymous hemianopia and anomalous head posture.
- Utilized head computed tomography (CT) and magnetic resonance imaging (MRI) to confirm cerebral lesions as the cause of hemianopia.
Main Results:
- All patients experienced central nervous system disease onset prenatally or before 18 months of age.
- A consistent finding in all patients was a head turn towards the visual field defect.
- A gaze preference contralateral to the visual field defect was also observed in all patients.
Conclusions:
- Early-onset homonymous hemianopia is a significant consideration in the differential diagnosis of anomalous head posture in children.
- The observed head turn may be a compensatory mechanism or a direct result of the underlying cerebral lesion affecting visual pathways.
