I was told that dogs are color blind. What were you talking about dogs' vision?
Observing my own dogs all these years, I believe they can see color, but I was told otherwise. My dog is blind in one eye according to the Veterinarian eye specialist. However, my test of that eye (covering the seeing eye) demonstrated for me that he can "see" from the "blind" eye! Hello? Are there extra sensory abilities that we do not know about?
Many questions, but with some research, we will discover together more more about a dog's vision.
The placement of a dog's eyes gives it a general vision with a wider depth and field, and therefore see more than humans. However, a dog's peripheral vision compromises binocular vision (seeing with both eyes). The wide-set eyes would have less binocular vision, although a dog's depth-perception is best when looking straight ahead, as they are blocked by their muzzle at different angles.
Even though dogs' peripheral vision cause them to see more of the world, their eye for detail is seven times poorer than in an average person, because of the structure of their eye: dogs have no fovea or area with 100% cones, that assist With acuity or detail.
Dogs are red-green color blind. This is due again to the eye structure of having only two cone types. Therefore, the dog's view of color gives the brighter shades of yellow and white, into the softer blue and muted purple-violet, brown and gray tones. So they do see color!
I do notice my own dogs are very sensitive to the slightest move around them. This is true, as all dogs have an increased sensitivity to detect movement. Often my dogs witness a movement before I am ever aware of it, particularly at night. Of course, this is such a positive benefit for their vision.
Humans do not see with ease at night-dogs do! Again, a unique eye structure provides dogs with more rods, which enable better night vision. They also have an eye structure called the Tapetum Lucidum, a reflective surface behind the retina that reflect light back through it, which gives the shine and reflection that you see at night.
It sees dogs have a unique sight advantages since more privileges than humans when it comes to being aware of their surroundings! They see more around them; They are keen to notice the slightest movements; And they see brightness and mute camouflage shades, all of which can be advantageous for their hunter instinct.
If we were to use the television as an example to compare our vision with dogs, it can be hilarious to observe a dog "watching television!" Many owners say their dog watches television. This is true. My dogs do too! Particularly when I watch my favorite dog show programs on Animal Planet, or Cesar Millan, The Dog Whisperer.
As we already discussed, seeing in sharp detail is poorer for dogs than humans. So, because dogs have an appreciably lower visual acuity than humans, what they do see on television are rough images, or blurs. Dogs can not see actual objects on the television screen, but they do see movement and shapes. Couple these capabilities with * sounds *! Dogs definitely can differentiate sounds coming from your television. As mentioned earlier, we enjoy watching Animal Planet and other dog shows. Our dogs react to "images of texts," and definitely to the actual animal sounds! This is when it becomes hilarious to observe the dogs, rather than the television screen!