Watching the four black dots in the center of the picture for 30-60 seconds. Then quickly close your eyes and look at something bright (like a lamp or window with sunlight coming through it). You should see a white circle with a picture inside.

Watching the four black dots in the center of the picture for 30-60 seconds. Then quickly close your eyes and look at something bright (like a lamp or window with sunlight coming through it). You should see a white circle with a picture inside.