Behavior & Training

Dog’s vision

Continuing with the curiosity of dog’s world, today we are going to talk about dog’s vision.
I think all people, at least once in their life, ask themselves: “Can the dog see?” and “Can the dog see the colors or only black and white?” and again “Which colors can dogs see?”… In this post, we will try to answer these questions and will focus on other aspects regarding dog’s vision. We can start!

Movement vs Detail

Dog’s eyes are more sensitive to the movement than to the detail. In fact, the dog sees up close in a very blurry way. To see the details of an object, the dog has to be at least 50 inches from it. All this has been proved thanks to a test: if the dog owner stands 300 yards away, probably the dog can’t see him, but if the dog owner is on the move, the dog can see him even up to 2 kilometers far. Don’t forget, the dog was born to hunt, so seeing objects on the move is maybe the most important feature of his vision.

Colors or Black and White

Dog’s eyes structure is very different from human’s eyes structure, so that makes the difference in the perception of colors. Dog’s eye has more retinal rod than cone cell, compared to human’s eye. Retinal rod permits to see black and white also in low light. While cone cell permits to recognize the colors even if they don’t appear significantly in dog’s vision. In fact, the dogs can’t see as many colors as humans. Green and red are seen as yellow tones but they can see blue and violet very well.

DogColor4

Field of vision

Dog’s field of vision is more or less 240°, with a binocular visual zone of 80° and two monocular visual lateral zones of 80°. It all depends on the dog’s breed, based on his anatomy.

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All images via Google
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