No I've seen what you describe. What I see when I'm having one is most often a shimmering electric zigzag. Sometimes it take different shapes and the colors vary. Its always at the edge of my vision and moves when I move my eye. Its better to close your eyes when they are happening. At least for me. I have had them in both eyes at once and its really freaky since normally I only get them in one eye at a time. They don't merge well and the combined blind spots have rendered me almost completely unable to navigate. I've pulled over while driving more than once and waited it out.