It’s good to think of the implications
According to the epilepsy society 1% of people have epilepsy, and 3% of them have photo sensitive epilepsy. Within that 0.03% of people
(or 5% of children/young people) - 0.05% of youngsters
But non sufferers could be disorientated or unwell
(Bearing in mind of course that the intent of strobes in a game is to disorient others)
There might be no effect at all on a photosensitive epileptic depending on the strobe frequency/pattern
https://epilepsysociety.org.uk/about-epilepsy/epileptic-seizures/seizure-triggers/photosensitive-epilepsy
We’ve used strobes as players at some events - underground / indoor / night games etc and also used ‘strobing’ pyro
(the scientists may disagree with the simplification that it’s effectively a flash bang that sets of a series of pulses rather than one bright bang)
As players we’ve only used them with organisers permission - either in the event rules or confirmed it’s OK
Ideally a photosensitive epileptic will identify themselves to organisers - (have you ever read the disclaimer forms that you sign or the ticket booking small print?)
An organiser would allow / disallow on the basis of what they know of the site, and of the players.
The greater risk is possibly players running into walls or tripping due to disorientation
For brightness our eyes have the natural protection of blinking, and even with lasers as long as they are UK / CE legal there should be no or negligible risk of blinding someone in game play unless you hold them down and prise their eyes open
((We’ve used strobes mainly as dropping a torch in a corridor etc to distract people’s attention or make it hard for them to see whether they can get through it - then shooting them while they stand confused)