Most people are aware of this. A standard EEG is done with photic stimulation
ie flashing light and photosensitivity would usually be diagnosed at this stage.
Approximately 1:130 of the general population has epilepsy and of these
only a few per cent may have seizures induced by flashing lights.
Such sensitivity is commoner in children and adolescents and becomes
less frequent with age, being very uncommon from the mid twenties onwards.
