One of my BR poults has a closed eye. It has been closed since I put it in the brooder. I am unsure if it was closed when I bought it since I didn't get to choose them. Today, the socket looked swollen, but not red and the eye looked like it had opened a little. This poult stays under the light. Will walk around if it is forced to. Every other poult is very active, although they seem be very mean. Not just to that poult, but to each other. What do I do? I have lytes in the water.