How a dog sees is really pretty interesting. Some people think that dogs actually have the same vision as humans do and that is not totally true. Our eyes are very complex in different ways. One thing that is pretty clear in most dogs is that they can see so much better than us at night. I am blind as bat so without my glasses I can’t make out if my dog is in front of me or not. You don’t see many dogs walking around with glasses these days.
Here is an article I have written explaining how dog’s are able to see:
It’s not easy to compare dog eyes to that of humans or conclude just how well other species can see compared to our own vision. Because dogs are a popular pet and also work in a service role with people, researchers have delved a bit deeper into their eyesight.
Dogs are physiologically very similar to wolves; because of this, their vision is well adapted to a life as a predator. To understand this adaptation, we need to learn a little about the cell types in the retina. There are two types of light receptor cells in the retina – rods and cones. The rods are sensitive enough to detect very small amounts of light, and are very useful at night or in dim light.
