Hello all. I noticed today that one of my Brahma hens has a fixed pupil and the lens seems a little larger than it should be. No other swelling, discharge, redness, scratching or noteworthy discomfort on her end. Doesn't seem like an eyeworm - maybe an injury or infection due to injury? Should I treat with an antibiotic as precaution and make/buy an eye shield? (I already have oxytetracycline on hand). Any advice would be great - thank you all in advance!