The purposes of eye movements
Keep an object on the fovea
· Fixation
· Smooth pursuit
Keep the eyes still when the head moves
· Vestibulocular reflex
· Optokinetic reflex
Change what you are looking at ( move the
fovea from one object to another)
· Saccade
Change the depth plane of the foveal object
· Vergence – eyes move in different directions