I've seen some surgeries on aros but they were for more expensive Asian aros that had drop-eye. They sedated the fish and made a cut above the drop-eye and then they took out some of the fat that was pushing the eye down. But, in general, fish surgeries are very expensive so that's why they are done on expensive fish like Asian aros. However, it ultimately depends on how much you want to save your fish and how much you are willing to pay.