17 Year Old with Under Eye Bags? (photo)

This is not an uncommon problem is definitely genetic. As mentioned by others there are a couple ways to tackle this: the permanent way or the temporary way, and only you can decide which is best for you because both can give good results.

For you, transconjunctival blepharoplasty with fat repositioning makes the most sense. You are very young with a lot of years ahead of you. Doing the fillers over the long haul would be more expensive than getting the surgery done. But if you wanted to wait a couple of years till you get the surgery done, the fillers can be stop gap in the meantime. If you want to have surgery done, you would need parental consent until you turn 18.

You basically have two options as far as treatment of your under eye bags.  As you mentioned, the non-surgical option would be to have an injection, such as Restylane.  This would be injected under the bag to smooth out the appearance.  The result would be temporary, but in that location it can last a year or longer.  In regards to your age, you could have the treatment but would need consent from a parent.  Your other option would be surgery (in which you would also need parental consent).  With this procedure some of the excess fat can be removed so that there is not as much puffiness.  The result of this surgery is normally very long lasting.  Hope that helps. 

Being that you're 18 and your life is likely quite busy and you may not want to undergo surgery at this time. I would recommend using a filler to hide the lides and darkness and fill the tear troughs. This can be done in 15 minutes, with no recovery. It is only temporary (6-12 mos) but perhaps it can buy you time until you're older and may want to consider surgery.