Intermittent photic stimulation (IPS) is a common procedure performed in the EEG laboratories in children and adults to detect photosensitivity. In clinical practice, a considerable variability in outcome can be observed which is caused due to many different methodologies used per laboratory. Standardization of this procedure based on scientific and clinical data should permit reproducible identification and quantification of photosensitivity. A survey of IPS methodologies used in different EEG laboratories in the Czech Republic will be presented and compared to the algorithm proposed as a consensus of European experts in this field in 2011.