VISUAL FIELD DEFECTS IN OPTIC CHIASM LESIONS
Abstract:
Temporal visual field defects result from the compression of the optic chiasm medially involving the crossing of nasal retinal fibres, while nasal visual field defects occur with lateral optic chiasm compression involving the temporal retinal fibres. The visual field defects reported with optic chiasm compression include nasal visual field loss, arcuate visual field defects, scotomatous visual field defects and homonymous visual field loss, in addition to the typical temporal visual field loss.
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