occipital lobe seizure parietal lobe seizure parieto-occipital junction seizure true Epileptic nystagmus may be seen. If nystagmus is seen, this is typically with the fast component to the side contralateral to the hemisphere of seizure onset and the slow component returning to the ipsilateral side. Eye movements typically occur with retained awareness, and may be accompanied by head or trunk version. There may also be eyelid flutter or forced eyelid closure.