I think at the end of your search for an answer you will find experts dancing around definitions and terminology. that's because juvederm is not going to get into lymphatic channels and block them. however it will create swelling, as part of the way it works is to draw fluid to it. So what you are seeing may simply be volume created in general by juvederm. That volume does require lymphatics to resolve, but I really doubt your lack of resolution is because lymphatics are blocked. They just might not be able to liberate the swelling yet, or there is more swelling than the lymphatics can clinically improve thus far.
It's well known that juvederm, and all similar products, can result in persistent swelling around the eye that takes more than two weeks to resolve. My suggestion to you is to continue massage in the area, give it more time, and if it does not reach a point you are happy (or not within a time frame that you need), then return to your surgeon. It can be reversed with an injection of a similar enzyme specific for that product.