dual cost

I consulted at a few hospitals to get double hands when the weather was cold, and the cost of incision + bridge + epicanthoplasty is usually between 200 and 270. Is this usually the case?
 Since it was my first time doing dual wielding, I expected about 150, but it turned out to be more expensive than I thought! Is it because it involves eye correction and epicanthoplasty instead of just making an incision?
 I don't really want to do eye correction because I've seen a lot of side effects, but they say it's better to do everything except one, so I'm thinking about it.