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Turkish Journal of Neurology Indexed By
  Visual Evoked Potentials in Photosensitive Epilepsy [Turk J Neurol]
Turk J Neurol. 2001; 7(2): 25-30

Visual Evoked Potentials in Photosensitive Epilepsy

Ahmet GÖKÇAY1, Figen GÖKÇAY1, Neşe ÇELEBİSOY1, Özgül EKMEKÇİ1, Dilek DEMİR KIYLIOĞLU2, Hatice KARASOY1
1Ege Üniversitesi Tıp Fakültesi, Nöroloji Anabilim Dalı
2Muğla Devlet Hastanesi

Photosensitive epilepsy is a condition that affects I in 3000 of the population. Themost common ages of onset of photosensitive epilepsy ranges from 7 to 19 years. Various abnormalities in flash and pattern reversal visual evoked potentials have been described in photosensitive epilepsy. Hyperexcitability in visual system may accountfor photosensitivity. We studied PR- VEPs in 32 patients with photoparoxysmal response. Pattern reversal VEPs were within normal limits for latency and amplitude. Twenty four patients were seizure free for approximately 1 year but showed photoparoxysmalresponses in the EEG. The normality of the PR-VEPs recorded in the absence of epileptiform activity may support the integrity of the visual system. Five cases with clinical seizures were on VPA therapy.

Keywords: Photosensitivity, pattern- reversal visual evoked potential, VPA.


Ahmet GÖKÇAY, Figen GÖKÇAY, Neşe ÇELEBİSOY, Özgül EKMEKÇİ, Dilek DEMİR KIYLIOĞLU, Hatice KARASOY. Visual Evoked Potentials in Photosensitive Epilepsy. Turk J Neurol. 2001; 7(2): 25-30

Corresponding Author: Ahmet GÖKÇAY


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