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Photosensitive patient not suffering from eyelid myoclonia with absences (video-EEG and interview)

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Photosensitive patient not suffering from eyelid myoclonia with absences (video-EEG and interview)

Video-EEG and interview of a photosensitive patient not suffering from eyelid myoclonia with absences. She has self-induced seizures by rapid successive movements of the left hand in front of her eyes while watching television or in the sun. Sequence 1. Imitation of self-induction by repetitive opening and closing of the eyes in front of a bright light source. Sequence 2. Video-EEG demonstrates spontaneous eyelid myoclonia with absences–like symptoms. These are also reproduced on request at low intermittent photic stimulation flash rates without EEG discharges. There are no abnormalities on eye closure. Photoparoxysmal discharges of polyspikes are induced by higher flash rates, and these are clinically manifested with axial and limb jerks without eyelid myoclonia. Sequence 3. Description of the self-induced process. (Contributed by Dr. C P Panayiotopoulos.)