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Blind Spot

This boy is chasing a butterfly - time to end this madness. Close your left eye and look at the boy with your right eye. Then move your head closer to or further from the screen until ... the butterfly disappears ! You can't see the butterlfly because it's exactly in front of your blind spot, the place where the optical nerves enter the eye.

Created by : Stefan Van den Bergh

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Copyright © 2008 Stefan Van den Bergh. All rights reserved. Affiliated with Interesting Illusions.
URL: http://www.planetperplex.com/en/item157
Last modified on Saturday, October 24 2009