Couple options for the eyes, since there was a mesh under the black brow, you could try deleting the "outer" eyes if there are any.
If that's not it, check the normals. Try selecting an eye: Normals > Reverse

If the single obj mesh isn't UV mapped (it should like not like a mess in the UV editor) you'll have to do that (a pain) but if it is, then you should be able to piece the existing textures together in Photoshop, possibly, and apply it to the whole mesh. Hope that helps.