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Description Presented here is a vast gallery of many different forms of Optical Illusions. Whether these optical illusions are conveyed through fractals, photographs, architecture, art, or old fashioned pen and ink, they are bound to remind you that "seeing is not believing."

Caution!!!! Some of the optical illusions on this blog may cause dizziness or possibly epileptic seizures. The latter happens when the brain can't handle the conflicting information from your two eyes. If you start feeling unwell when using this website, immediately cover one eye with your hand and then leave the page. Do not close your eyes because that can make the attack worse.
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Pacman Optical Illusion

This is an amazing optical illusion.

I found this illusion on several sites on the internet. One semi-popular link farm spent 6 pages of comments discussing this optical illusion. Many were confused about what this optical illusion was all about so let's start off with the following. (If all goes well you might see something like the small image to the right).

  1. The below image is an animated gif file.
  2. The image is composed of 12 frames, each frame has 11 purple dots on a gray background.
  3. These frames are designed so it looks as if one dot is removed at a time progressing clockwise.
  4. There is no green dot in this image at all.
  5. There is no green dot in this image at all.
  6. There is no green dot in this image at all.
Stare at the center cross, you will notice a green dot start going around the circle. As you continue to stare the green dot will appear to consume the purple dots until all that is left is the green dot circling the cross, then the purple dots will reappear one by one until they are all visible again.

Pacman or

Jeremy L Hinton
Copyright 2004
Used w/permission

Simply put the reason you see the green dot is because that is the afterimage (or negative) of magenta.

For a more thorough explanation of how this optical illusion works go here.


Anonymous said...

if u stare at the cross long enough u will notice that the pink dots appear to disappear and the green dot sustains its movement (clockwise)

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