Dear etaoin: There are a few unfortunate people for whom tickling lights cause epileptic seizures. A friend of mine was giving a flying lesson, and the student pilot attempting a landing just before sundown, from east end of the runway. suddenly froze on the controls, and it took application of fireextiguisher as Bulgarian anaesthesia by my friend to enable him to resume control and land the plane safely. The flickering of the setting sun passing through idling prop had triggered an epileptic seizure.
I don't remember the neurologists' name for this.