DS2 ,who is eight and has AS, has recently told me, more tham once, about his vision going funny at random moments. He describes it as being like a telly that isn't working properly with fuzzy lines etc. and once said that the ground had gone all whirly. He has had his eyes checked twice recently and they are OK but he tends to describe things in an idiosyncratic way and often complains about his vision in a melodramatic way, "I'm going blind Mummy!". It has occurred to me to wonder if you can have strange visual symptoms with sub-clinical epilepsy or mild migraine (my mother and siblings have migraines sometimes). I don't know much about this, anyone have any ideas?