The Eyes Have It: Normal Canine Vision
The Eyes Have It
Vision is extremely important for herding dogs, whether it is used in their daily life or for dog sports. But for working dogs, it is especially important. When your herding dog is sent on an outrun after livestock, his eyes will be looking for stock as he runs. In an arena trial, the stock will easily be seen, but this isn’t the case in a big open field Border Collie trial.
There are some myths about canine vision that research has put to rest. One is that dogs can only see black, white and shades of gray. While dogs are somewhat “colorblind”, they do see blues and yellows as well as the grays. Basically, dogs have two types of “cone” cells in their retina. Humans have three, which gives us the broader set of colors.