This is neat. Some issues I spotted: spot-0.png doesn't seem to be a Gabor stimulus pattern (see http://www.cogsci.nl/software/online-gabor-patch-generator), the "press F11" and "Click to begin" messages don't go away (and sometimes going fullscreen is impossible/undesirable anyway).
Heh, nice. Just a little feedback - I can select all purposely or by accident and it highlights the dots. Also, in FF on Win 7, the 'press f11' prompt won't go away. Thanks for the opportunity to get an idea of what this is about, though.
I pressed F11 to go to full screen. The message didn't change. Anyway, I saw a circle pointer and spots on the screen so I started clicking them one by one and they got 'cleaned'. Finally, I removed all the spots that I could see. Nothing happened after that. No message.
For people wanting to look at the code it's at https://github.com/Fordi/eyegame
Also, what's the license?