heres wot u do
draw a curve something that represents eyes (like a oval or something)
Modify> centre pivot & freeze tranformations
Do the same for your eye
Then all you do is select the curve, shift select the eye, and in your animation menu, select constraints > aim
Now move your curve and your eye will follow (you will have problems unless you centre pivot and freeze transformations)
now repeat for the other eye
good luck
those who succeed are only the failures that never gave up.
https://www.vimeo.com/7080130