For eyebronws, eyelids and eyes movements I use the bones. For facial expressions I use the morphs. To create eyelids try the following example: Create a *sphere with that size for the eye on the vertex modeler: X = 0,57 y = 0,57 Z = 0,57 (* I dont know why, but allways one of the axis must be resized for the equal the other two.)

Create another sphere for the eyelid:
X, Y, Z = 0,58

Delete the lower half. Select the object, add some thicknes (0,02 in) and put on the same position as you see on the image. After that, put it to fill the eyeholes on the models face. Create the skeleton, work with weights and...thats all! :-)