[vnorilo]

I have migraine once or twice a year, and the most recent attack indeed interrupted my reading, quite simply did not see the letters through the zigzag. As it gradually covered the focal point of my vision I was trying to "squint" mentally but eventually gave up. There was no followup headache, just a slight vertigo.

[mikelevins]

Interesting data point. I just have the one experience to report, so far, but I fully intend to test it out again the next time I have an episode.