Some dogs have a lot of hair on their head and face that grows down and covers their eyes. This is a dog's fringe, kind of like doggy bangs. When a dog's fringe is not trimmed it can grow so long and thick that it actually impairs your dog's vision. Another problem is that, for some breeds, show standards dictate that the hair on their head not be trimmed for showing. This can result in a dilemma when breed standard rules come into conflict with your dog’s well being. For most dog owners, trimming their dogs bangs or fringe is not an issue, if your dog can't see, or if long hair in the eyes or is getting yucky from eye discharge, trimming it is a no-brainer.