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    Dog Vision - What Does Your Dog See?

    Articledog health and wellbeingFriday 18 April 2014
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    Dogs see the world from a very different height then we do; usually between one or two feet off the ground. Dogs have had to adapt their vision to fit their livestyle and the conditions in which they inhabit. 

    Dog eyesight works in about three different ways: motion, contrast and colour.

    This article will attempt to explain the answer to the popular question "what does your dog see?". For medical counseling please please refer to Dog Health & Medicines.

     

    Sense of Motion

    Your dog’s ability to sense motion is much better then a human’s. As an example, when we look at the television we see fluid pictures, but what a dog sees is quite different; dogs see the television as flashes of light.

    A dog’s perception of movement is so good that it can see a moving object from half a mile away. If the object a dog is looking at is stationary then your dog will only be able to see it at 600 yards away.

     

    Visual Acuity

    On average, dog eyesight is measured at 20/75 vision.

    This means that a dog sees the same thing at 20 feet as a human would see at 75 feet. Anything closer than 33 cm to a dog will appear to them as blurry whereas with humans we can get things as close as 7 cm and still see them perfectly.

     

    Field of Vision

    The range of vision a dog has is in direct correlation to the size of the nose and how close the eyes are to each other.

    As a general rule the longer a dog's nose is, the greater its field of vision. A human has a field of vision of 180 degrees while a Pekinese has 220 degree vision and an Afghan Hound has a massive 290 degree vision.

     

    Colour Perception

    Just like human eyes, dog’s eyes are made up of rods and cones.

    Dogs have a different emphasis however, humans have more cones and dogs have more rods, this means that dogs can see better in the dark than we can. Contrary to popular opinion dogs are not colour blind, they have difficulty distinguishing between indigos, blues and violets. Blueish green colours appear to dogs as a shade of grey.

    Although humans are better at distinguishing colours, dog vision is better at telling the difference between subtle greys.

     

     

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