/3/ - 3DCG

I was doing UVs on my horse model for the eyeballs and lashes. When I finished, This shit happened to the head of the model.

I'm using Maya.
In order to get the lashes, I used a polydraw tool that usually is used (from what I've seen in tutorials) for re-topology, but I've seen it used for doing eyelashes. When I finished making the lashes, the model was still fine. I then hid all other objects and began working on UVs. When I finished, my model was like this and missing the rims around the sockets. I tried undoing, but I forgot to enable unlimited undo's.

I'm wondering if there's a backup file somewhere that I can access from previous saves? What should I do? I've been working on this thing for weeks.