Visual Field Defects in Relation to Head Injury Severity

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A total of 159 head-injured patients were classified into four groups based on two acute categories of injury severity (minor-to-moderate and severe) and the subsequent presence or absence of visual field defects (VFDs). They were assessed neuropsychologically within ten to 19 months after injury. Within both minor-to-moderate and severe injury classifications, patients with VFDs were more impaired neuropsychologically and had more frequent acute secondary intracranial complications (brain swelling, intracranial hypertension, and cerebral hyperemia) than patients without VFDs. The findings suggest that the presence of VFDs during the long-term period may be residuals of acute secondary complications indicative of increased neuropsychological deficits after head injury.