Follow-up question: 1 year post-op tear trough filler, why are my eyes still swollen? (photos)

From your pictures and the filler used, it appears that your injector did what many are still doing and injected the wrong filler above the orbital ligament. This caused interference in the eyelid lymphatic drainage and, thus swelling of the eyelid above the ligament. If recognized early, the filler can be dissolved and the swelling will dissipate. However, at this time, it is improbable that hyaluronidase will work. You simply need to wait until the filler dissolves on its own. From your pre picture, I would suggest you do nothing else in the near future.