Name of weird anime I saw years back?

No.11828309 ViewReplyOriginalReport
/a/, many years ago I saw a strange anime about some kind of parasite that looked like the yolk of an egg, and possessed people by attaching itself onto their eyes. One of the women had green hair, I think.

Are any of you old enough to actually remember such a thing? I was too young back then, and just remember it slightly, but it did lay a huge impression on me.

Image totally unrelated. Sauce is Love by Charm.