Yes, it is a strange experience.
Mine always start with a very small area in the center of my visual camp. Then, slowly, it enlarges to form a circular arc, with a multitude of « teeths ». The picture, in the middle of the text, describes well what it is.
Mine are spectacular, VERY beautiful, with different changing colours. No pain at all.
The first time I had it, I did not move. I just watched it.
.
When I close both eyes, I see it perfectly.
If I close only one eye, I see it too.
After a small half hour, it is gone.
.
One day, I mentioned it to my wife.
She rushed me to our physician.
He told us that it is not necessary to worry.
We just have to wait…