eye problems

Eye issues in 3 of my 15 hens: fowl pox or something cluck-worse

Oh, three of your fifteen hens with eye issues, that's the kind of fowl play that makes even the bravest chicken tender a little nervous. Given that everyone's acting normal, eating fine, and free-ranging without a care, I'd put my money on dry fowl pox rather than something cluck-worse like infectious coryza. The timing fits perfectly with fall molting season, and the fact that you raised them all from chicks with no new birds since March makes a contagious respiratory bug less likely. Fowl pox is frustratingly slow to heal but usually clears up on its own. For more on what's normal and what's not during these feather-losing months, check out our piece on "Is this normal?