Sunken Right Eye?

I had a large orbital floor fracture and received surgery on 9/10/12. The surgery went well but now I notice that my right eye is a little more sunken in than the left. Most people are telling me its barely unnoticeable which I don't believe. It's kind of freaking me out but I don't know if it's enough for a secondary surgery or even if it's worth the risk of a secondary surgery. Are secondary orbital surgeries common and to correct this problem what type of surgeon is best for this operation.

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