I have rigged all my mesh and woks fine except for the eyelids. When I move the respective eyelid rig-bone simulating eyes closing, the eyelids get an odd deformation as in the picture below. I re-edited some of the polygons there as I though it could be a defect on the modelling but It stills having the same problem. 
is there a solution for this?
thanks in advance[![enter image description here](https://i.stack.imgur.com/pZ2QA.png)](https://i.stack.imgur.com/pZ2QA.png)