Hello,
Is the bump/growth on his eyelid soft or hard?
I have not seen too many dragons with growths on their eye lids, but have seen on top of the head, etc. This hopefully is just a harmless cyst, etc. Has he ever had an eye injury that you know of or retained eye shed that damaged the area trying to shed?
Has it ever drained any fluids at all?
It sounds like he is doing just fine without it bothering him. I would say it is up to you but you may want to at least go have it looked at to make sure it is not a tumor, or an abscess or some sort. My thoughts are that it is a harmless cyst, if it is hard.
I agree, I would take the coil out, they are pretty hard on their eyes. Which MVB are you using now?
Tracie