I have a hen who developed a circular white cyst on the upper part of her left eyeball. It was about one quarter the size of her eyeball. It has been there for about 6 weeks that I know of. I didnt think there was anything I could do and it didnt look like it was bothering her so I just let it alone. Within the past 2 days I have noticed her closing her eye a lot. It does look painfuland now appears to be growing bigger. It seems to be shooting out little tendrils. What can I do? Anybody ever have anything like this?