Huh. I think this might be what I get maybe 3 or 4 times a year since my 20s. This specular, colourless arch in the center of my view that slowly grows into a

Huh. I think this might be what I get maybe 3 or 4 times a year since my 20s. This specular, colourless arch in the center of my view that slowly grows into a ring, grows larger and larger until it's just around my peripheral vision, and then is gone and that's that. No symptoms other than a kind of blindness where it is in my vision. None of the artwork in this page really describe it well for me, though maybe they're trying to be more abstract. The example on Wikipedia is almost a perfect rendering of what I see, now that I've looked it up. The blindness is a fascinating experience because the brain is clearly trying hard to fill in the blanks. I can look at text in a book and I see text in a book... but if I try to read any of the text it just kind of isn't there. I have to read by looking slightly away from the text.