The Healing collar is best when the injury, skin irritation or surgical site is not in the face, head, ears or snout or eyes. This is because those areas are not protected and a dog or cat could rub or scratch their head, snout, ears, eyes and face, on the floor, grass, wall or other material.
The Comfy Cone is a better choice when the head, face, ears eyes and snout, does need protection while healing. The vision of a dog is not impeded in anyway. A dog does not have or use peripheral vision as people do and if they hear a noise they can easily turn their head. It also is a misconception that a pet needs to see out of the clear e-collars. When an animal looks through the plastic, images are distorted and it makes them constantly nervous with everything even a shadow, because they do not know what is coming up on them. They also can get nervous because they can not protect themselves. Dogs are like horses with blinders, if they don't see it, it doesn't exist, so they relax much more.