[Post-traumatic optochiasmatic syndrome].

A case of post-traumatic opto-chiasmatic syndrome is described, and the principal characteristics of the affection outlines. This rare syndrome complicates severe cranial injuries, and is simple to diagnose when confronted with a patient with bitemporal hemianopsia frequently associated with diabetes insipidus or paralysis of certain cranial nerves. Suggested mechanisms for the lesion include sagittal stretching of the chiasma or an ischemic focus.