WDW used to list information about flashing lights in their Guidebooks for Guest with Disbabilities for each park. They don't have that information listed any more, but as was already noted by another poster, you can ask the CM at the ride entrance whether the attraction has any.
I know in the last 2 years, they added signs outside atractions that talk about boarding for people with wheelchairs (like whether or not you need to transfer) and note warnings for that attraction. I believe flashing lights were among the warnings on the signs. The next time we go, I'll have to check.
We used to have some threads on the board that listed the attractions with flashing lights, but I went back almost 4 years looking and the ones that DO talk about a list, link back to even older threads that are no longer on the server. So, unless I can find where I saved some of those things before the server switched, we need to come up with a new list.
For most people who sensitive to lights, it is not the lights themselves or exactly the flashing that cause the problem. It's either strobe lights (which have a very bright, regular piercing flashing) or rhythmic flashing of lights in the dark that cause a problem. There are actually certain frequencies of light flashing that tend to cause seizures more than others. Some people are very sensitive to flashing lights (I have heard of people where jsut driving in an area where you repeatedly go from shade to light triggers a seizure). Some are not that sensitive and it takes flashing light of a specific frequency, plus sleep deprivation, plus the lights being right in front of them. More information about exactly what light conditions trigger your fiance's seizures might help.
What I have noticed about attractions with flashing lights at WDW, is that they don't use traditional strobe lights and they seem to take pains to make sure the flashing is not rhythmic.
The other factor is threshold - how easy it is to start a seizure. Someone with a high threshold might have infrequent seizures or it takes a lot to trigger seizures. Someone with a low threshold might have frequent seizures or it takes very little to trigger one. Some things that might lower the threshold include:
- lack of sleep or being overtired.
- change in the schedule of medication
- dehydration
- for women, fluctuating hormone levels
- having a seizure lowers the threshold needed to have more
My DD has a pretty low seizure threshold. One of the biggest things that seems to make a difference for her is dehydration - and it's very easy to get dehydrated in WDW with the heat and sweating.
