Hi I am posting this question for a friend of mine. She has a chicken that has suddenly gone blind. The chicken was sitting on eggs and she had been sitting for only a couple days when suddenly she went blind. She has swollen lids , black eye, no mis shape of the pupils, no Grey eye, but completely black.she was eating and drinking fine while setting and is still eating and drinking but is blind! I've tried to reasearch this but I've came up with nothing. Does any one know what this may be and the cause/cure? Please help
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