I’ve yet to see a good illustration of what scintillating scotoma looks like, but the bottom two images here are close.
It starts as a tiny dot at the center of my field of vision. Slowly, it expands into a larger, jagged-edged circle-ish shape. It’s not solid, though; it’s like looking through one of those cheap, mirrored kaleidoscopes. As it grows larger, the center of the circle returns to normal vision. Eventually, the entire ring will expand past my field of vision and disappear. Oh, and to make things more exciting, the whole thing vibrates. No, really! It’s a very weird experience.
red paper boat 