Choosing axes that fits Donders' law can be tricky

Click on the axis that will turn the eye 90 deg. to the eye's left.

If you click on the wrong axis the eye will rotate a little and then return.

If you click on the correct axis the eye will turn to the left and stay there.


Copyright © 1996 Tutis Vilis and Douglas Tweed
University of Western Ontario
London Ontario Canada
Updated October 28, 2005

Comments welcome. Email to tutis.vilis@schulich.uwo.ca