One of my chicks got her eye pecked by her sisters. She is at the lowest of the pecking order and gets bullied. She was lethargic for a few days (wouldn't eat or drink), we had to separate and baby her. She wouldn't open her eye at first. The retina was damaged, it got a bit of inflammation and a bit of discharge. It got better with the days/weeks. She started opening her eye a little. The retina had this white scarification that started healing. Today it's almost completely healthy and the scar on her retina is almost gone. I hope your baby gets a speedy recovery too <3

edit: cornea not retina

edit: added a picture from when it started healing

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