I'm so sorry about your hen ChicKat.
I have a little bantam Light Brahma that is going to be 3 this coming Spring. Her eyesight's been going downhill for the last two years though. She'll try to peck my hand, but misses by a couple inches. I'm assuming it won't be long before she can't see at all.

She can function just fine though, she scratches and runs around normally, eats and drinks, and is really just a normal chicken, except sometimes she misses the feeder or the water or something, but she always gets it the second or third time.
Late this summer she was attacked by a hawk, but luckily our Borgi chased it off in time and she was fine besides an easily treatable wound on her back and some missing feathers. While she was inside I just had her water in a tupperware, but she had no idea it was there because it might as well've just been invisible to her. So I just put a drop of food coloring in and she figured it out right away.
She's tough, smart, friendly, and personable, everything I like in a chicken, and I wouldn't trade her for the world.
As long as they can still find food and water (if they're totally blind I would show them where it is until they figure it out, then just make sure food and water is ALWAYS in that spot, and that they can't accidentally fall in deep water and drown) and aren't at risk for predator attacks (especially aerial) you'll probably be fine. Eliza gets along just fine, and
sometimes she can even manage to catch a grasshopper if it's big enough for her to see.
~~Ms. B
