I remember a thread several months ago with something similar... someone will have an answer for you ( Im still learning)... summer has been alittle slower on here but there are several VERY knowledgable ppl here and they will help ,so hold tight and good luck with your duckie..
I am not sure what it is, but one of my crested girls had something like that. It started when she was about 1 week old in one eye and lasted until she was 9 weeks. Then it went away, but she is now blind in that eye.
I hope you can help her before it damages her eye!