1. You make two dummys(Call "A" & "B" dummy) and place them in front of the two eyeballs.
2. Then you make one more dummy(Call "C" dummy) and place it between the two dummy, you made them in the first step.
3. You select one of the eyeball, and then go to the motion panel(On your right side with a wheel logo).
4. In the motion panel, select the rotation in the Assign Controller listbox.
5. Then click the "Assign Controller" button on the top left side of the Assign Controller listbox.
6. Select LookAt Constraint in the Assign Rotation Controller window.
7. Click on the box of "Keep Initial Offset", and then click the "Add LookAt Target" button in the LookAt Constraint list box, and select the dummy in front of the eyeball.
8. Repeat step3-7 on the other eyeball.
9. Link the "A" & "B" dummys to the "C" dummy.
10. Move the "C" dummy and you will see what happen!
I hope it can help you!
