I have a two and a half year old Easter Egger who seems to be blind in one eye, or maybe somewhat both. She had been acting odd and standoffish for several weeks, occasionally refusing to come into the hen house at night (they freerange during the day on 3 acres and stay close to home). And then about a week ago, she started moving erratically around and banging into things. I noticed one of her pupils was misshapen, though the other seems okay and reacts to light. I separated her out and she was very lethargic and refusing to eat or drink for several days; I was pretty sure she was going to die. However, she's perked up. I've been bringing her special yogurt dishes and helping her drink her water. She has trouble finding it, will dart her head around kind of awkwardly, but then when she finds it, eats well. She doesn't seem to have too many other symptoms -- her poop is greenish in a liquidy white matrix (maybe from not eating much until yesterday), and she walks sort of crouched close to the ground. She cranes her neck around to look at me (I think) so she might not be totally blind. She's been making the usual sweet chicken noises so I don't think she's suffering. Haven't had an egg from her in a couple of months -- figured she was moulting along with everyone else. I have two questions: What do you think could be the problem, exactly -- vitamin deficiency? (She is a lower chicken in the hierarchy, so she might not have been getting as much layer pellet as the others, but there are a lot of berries and bugs outside) A disease? And two.... what should I do? Okay, I should probably cull her. But she is sweet and not suffering so I'd rather not. Do you think she could ever fit back into the henhouse culture again?? And can this kind of blindness ever be reversed?