Wow - I had the first instance of this happen about two weeks ago and had another instance happen last night. I was wondering how I was going to explain this to the eye doctor. No pain at all during the event.
It was in both eyes at the same place in my field of view - lower left and then occurring in the upper left, both images in a rough quarter round shape. The images also remained even when I closed my eyes. The duration was just a few minutes each time.
