Instead of spending money on the expensive eye ointment, simply use some triple antibiotic ointment in her eyes. It's exactly the same formula that opthalmic ointment made for humans contains. DO NOT USE one that has the pain reliever in it. If you can bring the girl in that isn't doing well and put her in a nice warm place that will help her heal. Chickens can't regulate their own heat when they are sick. Mix some sugar and a little salt in her water. Or give her some pedialyte mixed in her water. Also lightly scramble an egg, not hard, and offer it to her to eat.
I agree the heated dog bowls are the best option for an inexpensive and safer way to keep the birds water thawed. If you are still having problems with extreme cold let the girls go out during the day if they can. And don't shut the coop up tight because that can cause more problems than it solves.
I agree the heated dog bowls are the best option for an inexpensive and safer way to keep the birds water thawed. If you are still having problems with extreme cold let the girls go out during the day if they can. And don't shut the coop up tight because that can cause more problems than it solves.