Hi I have a duck with two eyeballs that look like this picture of yours, somebody gave it to me because he couldn't take care of it and give it special attention, I haven't been able to find pictures like this anywhere, one eye is so bad it can't even close, I am wondering if it's an injury or some kind of worm or puss.... did your duck just lose its eyeball or permanently start leaving it closed? I almost want to pull it out with tweezers because she can't even close her eyes on one side. But of course I won't do that.