Hydrops Degeneration: What are your experiences?

Hey there... I have a quick question—I'm working on some stuff for a college course and I need to find info on hydrops degeneration, but I am hitting a total wall. I can't seem to find anything decent about it online... so if anyone happens to know what the deal is with that, I'd really appreciate it... thanks in advance...🙂🙂

No, there really isn't ☕

http://www.google.com/search?q=hydrop...efff0884ab8605

Yeah, let's just stick to English—honestly, I really don't feel like dealing with all the translating...