Horse sight: The horse has the largest eye of any land mammal. A horse can see better at night than a human. However, it takes a horses eyes longer to adjust from light to dark and from dark to light than a humans. Horses are not color blind. They have what researchers call dichromatic vision, or two-color vision. Research indicates horses can perceive blue and green tones, and color variations based on them. However, they have difficulty with other colors, including reds. Most of the time, a horse has monocular vision. This means a different image is seen by each eye so that a horse is seeing two different pictures at the same time. A horse can also have binocular vision. Binocular vision is when both eyes work together to see one picture (humans have binocular vision). A horse only has binocular vision when it is looking down its nose. A horse has a wide range of vision. A horse can see completely around its entire body except for small blind spots directly in front of its face, underneath its head, and directly behind itself. This is why its very important not to walk up right behind a horse - you are in its blind spot and if you startle it you may get kicked.
Posted on: Sun, 26 Jan 2014 09:56:08 +0000