Pocket of Beletero after injection
Most likely the contraction of the periorbital muscles have pushed some the Beletero together. You may be able to flatten this out again with some gentle compression, but if not, a little bit of hyaluronidase injected into the spot with a tiny needle will do the trick.
i hope this works for you!
Undereye lumps following Belotero
What you may have developed is mild swelling related to a "pocket" of the filler. There also appears to be a slight bluish-gray discoloration to the area (or that may simply be lighting-related), which would also be a sign of superficial filler placement. This is very rare with Belotero, but it is not out of the question. The good thing is that this would almost certainly go away on its own with time. However, the treatment for this is easy and requires tiny amount of a product called Hyaluronidase, which can quickly breakdown the filler in that limited area. I would go back to your doctor, since my assessment via photographs cannot compared to an in-person evaluation and discussion. Hope that helps.