VDUs usually operate at a sufficiently high frequency that they do not provoke seizures,
even in people with photosensitivity.
Nevertheless, there are rare examples of people with sensitivity to high flash frequencies.
In general terms, it is better if the lighting in the room is with an ordinary light rather
than a fluorescent tube, as the flicker frequency from the fluorescent tube could
potentially interact with the flicker frequency from the VDU.
Probably, what matters more is what is showing on the VDU, in other words, is one
looking at a flickering programme or changing geometric pattern on the screen?
Playing computer games very rarely triggers epileptic seizures in people
without a known history of epilepsy.
People who do have a seizure for the first time when playing video games usually have an
unrecognised susceptibility to seizures triggered by flashing light, that is,
most of them are photosensitive.
It is important to realise that epilepsy is common and that one should not be surprised that
seizures will sometimes occur by chance whilst someone is playing an electronic game
or watching TV, without any causal link.
Proper investigation is required to determine the true cause of a presenting seizure in order
to give appropriate medical
