I have plagiocephaly and one eye is deeper in the eye socket. Options? (photos)

You have deep set eyes on both sides and it is largely due to a very prominent forehead. If we bring the forehead back and reshape it, you can have less deep eyes that will seem more symmetric.
An x-ray (CT) of your skull will be helpful to determine what can be achieved. We do this procedure very regularly.

Plagiocephaly affects both the back and front of the head as well. Your focus is on the front of the head, specifically the eye which is affected on the typical flatter side and is more recessed. The specific position of the eyeball can not be moved further forward because the optic nerve attached to it can not be stretched to do so. While the brow bone or forehead above it can be reduced, the deeper eye inside the eye socket can not be safely changed.