I am the executive director of a special needs and senior dog rescue. We have found the Muffin's Halos to be very good for our blind and/or senior dogs. The halo helps their confidence in new situations: both getting out of the shelter and adapting to a foster home and the adapting to their adoptive home. The halo is out of their line of vision, so the dogs who have "some" vision are not prohibited from using what little sight they do have. They are lightweight but sturdy. We do not have the halos on the dogs unsupervised because that would not be safe if they got stuck somewhere. The great thing about the halo is that it is very adjustable and the wings detach from the vest. The vest has a c loop so it can be used as a harness as well. We find that providing the halo along with the dog's adoption puts a pet parent's fear of adopting a blind dog at ease. We explain that this is a tool to help their new blind baby get around safely and with confidence....Read more Susan B.