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Prosopagnosia. Another condition caused by bilateral damage to the occipital lobe, prosopagnosia affects the patient's ability to recognize faces visually. Prosopagnosia can also occur with visual object agnosia. 1  1. 2  2. 3  Next Page. 4  Last Page.
Damage to one side of the occipital lobe causes homonomous loss of vision with exactly the same field cut in both eyes. Disorders of the occipital lobe can cause visual hallucinations and illusions. Visual hallucinations (visual images with no external stimuli) can be caused by lesions to the occipital region or temporal lobe seizures.