Altitudinal hemianopsia: a case report and mini-review.

Altitudinal hemianopsia is a relatively rare visual field defect. A case report is presented describing a patient suffering from sudden-onset traumatic altitudinal hemianopsia. Other conditions which may produce sudden or gradual onset altitudinal hemianopsias are discussed. The importance of the optometrist being aware of the possibility of an altitudinal visual field defect in conditions of trauma to the face after motor vehicle accidents is stressed.