Will an eye that has suffered an Orbital Blowout return to normal position on it's own?

If you have a significant orbital floor blowout and there has been change the position of your eye then it is unlikely that this position will improve spontaneously. Evaluation via physical exam and CT would be helpful. If the fracture significant then surgical repair is necessary. 

This is a difficult question to answer without examining you and looking at your CT scan, if you had one.  Sometimes, if the blowout fracture is large, the overall volume of the orbit is increased and the eye can appear sunken in due to a change in its position.  A consultation with a board certified plastic surgeon, facial plastic surgeon, or ENT surgeon should help determine how severe the injury is, and whether or not surgery would be recommended.  Good luck. 

Following orbital trauma, swelling can often cover up the underlying injury. Small orbital blowout fractures can be followed without surgery and in many cases will heal with out any complication. However, larger fractures tend to make the eye socket larger permanently allowing the eye to sit lower and further back. Your symptoms suggest that you need to schedule a consultation and potentially might need repair of your now healed fracture. This is typically performed with incisions hidden on the backside of the lower eyelid and involve a small implant placed below the eye that re-creates the floor of the eye socket. I hope this information is helpful for you.Stephen Weber MD, FACSDenver Facial Plastic Surgeon

Usually when patients have orbital trauma, even with a fracture, we'll wait at least a week before determining if surgery is needed. This is to allow any swelling to go down. Indications for surgery include double vision, especially when moving your eyes, or sinking of the eye in your socket. Usually this happens if more than 50% of the orbital floor is broken. Since you are saying your eye looks "set back," you may have surgery in your future. You need a CT scan and an eye exam.As for the timing, it's not as critical to have an early intervention as with other fractures. Orbital floor fractures are usually repaired by inserting something (titanium, various kinds of plastic, etc.) to form a new floor, instead of moving your bones around. It becomes more difficult because of scarring and fibrosis of the tissues that can set in, and your eventual result may not be as good as it would have been had you sought treatment earlier, but it's definitely doable.Good luck!