Hi Matt
I went ahead and took a look at the model,
the problem was that the normals on you eyelid geometry were facing the wrong way,
this is how I fixed it
I went to Polygons> Cleanup - option box and used these setting below,
what this did was take the correct normals on the rest of the model and reverse them, once I did that I selected the object then
I went to Edit polygons> Normals> Reverse
that reverse all the normals on the model so that they are facing out.
hope this helps
dae