INSTRUCTIONS: After clicking on the box of your choice, sit up fairly close to the monitor screen and stare into the center of the animation for a minute or 2 (the longer the better). Once you've done this, look at something else, and your vision will go haywire! Things will really look as though they're shrinking or growing!

grow

grow and shrink

http://www.skytopia.com/project/illusion/illusion.html

AAAAHHH!! I can not see anymore, 555. Interesting, thanks

Now I have a headache.. haha !!

>Laurant, PiAnt and Ed: freaky eh? Somehow I have the feeling that if you would this for a whole day, maybe the vision would become normal... perhaps just stripes or something... The eyes adjust already a bit to the velocity after 2 minutes.. Wicked...

the shrink grow one... is awesome very freaky

sweetheart, they are wicked cool.. but after a few mins i gonna throw up!!

That's cool.........