I have a hen about 2 years old, who started staying to herself. Hubby has been having health problems, too, so I didn't get on it as soon as I should, but she seems to be pretty well blind. When I started really paying attention to her about a week ago, she seemed to be having trouble seeing, and this has progressed to the point that today I put her by herself in a small coop (2' X 6' rabbit type hutch) with a pan of water and a pan of feed, so she could get at it easily. I think she had been sitting around not eating or drinking, as if she got close to some of the hens, they were driving her away, and not being able to see, she really had a problem. Anyone have any idea what would cause this? I looked at some eye worm posts, but her eyes don't seem inflamed, or watery,-they look fine, except you can tell she isn't focusing--can't see out of them. Any suggestions?