3 ms·

any evidence for these claims?

• ars 16y ago
  This article http://www.iovs.org/cgi/content/full/50/3/1158 http://www.iovs.org/cgi/content/full/50/3/1158 implies that vertical saccades are less accurate than horizontal saccades. I could not find direct measurements of the vertical vs horizontal velocity in the few minutes I searched, but you can try it for yourself. Try rapidly flicking your eyes left-right, then try up-down. At least for me left-right is much faster. Edit: http://elmar-inc.com/Papers/Clinical/SaccadesInChildren.pdf http://elmar-inc.com/Papers/Clinical/SaccadesInChildren.pdf has a graph that clearly shows that horizontal saccades are faster.