I'm still learning about rigging characters. This is the second character I rig and I'm having problems with the eyelids. I was told that using blend shapes would be the easiest way of doing the eye lids, but the eyes of the character are big, round and has some subdivisions.
I tried to do blend-shapes but I found it difficult to get the desired shape, and because the eye is round, I would need a lot of in-betweens for it to look good. I then tried another method with clusters, but the eye always looked king of weird on one side because the eyelids aren't symmetrical. 
So then I thought I could just use corrective blend-shapes to sort out the problem. I duplicated the mesh, and just added the blend-shape so I could start doing the corrections. But the original mesh changes a little when I activate the blend-shape even though they were both identical.
Then I decided to just use the the head of the mesh to do the corrective blend-shapes. I use Front of chain when I create the Blend-shape, but that doesn't work. So when I activate the blendshape, the rig stops working.
I'm out of ideas 
Any thoughts on how to do the eyelids?
I've spent too many hours on this..
Here is the maya file:https://www.dropbox.com/s/zaqbt9fsl1sg4ow/RigEyelid.mb