ROG:
You sit at a machine where you fixate on a central light and then other lights appear at random in various places on the screen and you click a mouse when you see them.
dirty devil 666:
Yeah done that at opticians and only missed one with my bad eye. but unfortuantly, could not read 3rd letter on eye chart. Hence a NO.
Nor could I without my special glasses for my bad eye - it was all a blur.