Sorry got busy, I would gently wash their eyes with warm water and try to get all the gunk off around the eye, after that I would apply an eye ointment around the eye as needed, although the treatment is fairly simple the underlying cause of the problem should be addressed. because it will occur again if not addressed. At that age, they should be able to dunk their heads in water 24/7. Have any of the birds been pecking each other?