I have had a small bubble-type lump on my eyelid for about 5 years. When I went to have a blepharoplasty on the upper eyelids, he said it was a tear duct that had fallen. Even after the upper lid blepharoplasty, it's still there. He said he was going to tuck it under when he did the surgery, but guess it didn't stay! Oh well, it's not that noticeable. You don't really see it unless my eyes are closed and you look really close. It's only about 2 centimeters or less in size. Anway, he's a surgeon and said it was a tear duct that had fallen down.