If you think it is needed, an internal antibiotic can be given. I'd go for a tetracycline, Duramycin-10 and do a 7-10 day course of it. 1/2 tbls. per gallon of water every 24 hrs.. Unfortunately, eggs should be discarded during treatment and for 21 days after final dosing.This is wild. I just hopped onto BYC to see if I could find anything for my girl's eye. And I found this thread!
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I don't want to hijack the thread but one of my hens started holding her eye closed and the skin was a bit red and swollen. I don't know for certain how long she was doing that before I found it. Probably not more than a day, probably less. I restrained her and flushed with sterile saline and looked inside. Boy, they hate that! I am afraid I will hurt her if I hold tight to her head while she is struggling.
Anyway, there is a white area on the eyeball and it has gotten bigger. As soon as I found the injury I started treating with veterinary antibiotic eye ointment I already had. The lid has improved, but the eye not so much. I am so worried it will be badly infected and spread somehow and kill her.
I had a feisty bantam rooster who got injured by the "babysitter" when I was away. I found him on the roost, very quiet. His eye turned white and he lost vision in it, but he did OK.
I worry Lily isn't getting to the food like she should. I went to pick her up, and she didn't know I was there and I scared the liver out of the poor girl. I'd prefer not to isolate her, as her best friend is in the coop. Since the above poster had a good result in the long run, I will continue to treat, watch and wait. Will check in in the a.m. to see how the OP hen is doing.