Last Updated : November 5, 2022

Can dogs see through glass

Could dogs see-through glass? If you have always wondered what your dog sees every time he looks through the glass, read on to know the answer to this mystifying question.

Can your dog see through glass

Yes, your dog can see through glass well every time he looks out a relatively light environment from a relatively dark one. But, their vision is very much different and is not as acute as that of humans. Dogs mainly use their noses and ears to make up for this difference.

Can dogs see through glass

Does dog see through glass windows

Yes, dogs can see through glass windows. Dogs are probably among the animals on the planet with the best senses. It is why canines can sense a person’s presence even before their owners can. While their sight and other senses are not as good as those of humans, dogs can still see-through glass windows.

However, dogs cannot process certain details that people can. It is also safe to conclude that their visual resolution is lower than that of humans. It doesn’t matter if it is a glass window, a glass mirror, a glass door, or anything similar because a dog’s sight stays the same as they see through all of these.

Signs that your dog can see through glass

There are several signs that you can check to ensure and confirm the vision of your dog through the glass and these are the following:


Every time your dog gets close to a glass window or door, he will become more alert so that he can understand and assess what the specific situation is all about. There is probably one question going on in your dog’s mind and that is if what he sees before him is a barrier or not.


If this is the first time that your dog sees a glass mirror, he won’t be checking his image or shape. Instead, he will bark to show that it is some sort of threat to him. But, if he goes near a glass barrier, he will try barking at it or at the nearby object close to the glass that he considered as a threat.

Elevated ears

Among the most common physical signs that can be observed in a curious dog around a glass, the barrier is elevated or raised ears.

Head tilting

Once a dog sees a glass barrier, he will tilt his head from side to side to understand and assess the situation, which is the glass barrier. It suggests that there is a certain level of vision with his surroundings.


Dogs have a remarkable sense of smell. Canines will try sniffing anything they encounter to check if it is hazardous or beneficial. A similar principle is applicable when they get close to a glass material. Dogs sniff as their way of assessing what the specific material is, what this is made from, and others.

How do a dog’s eyes work

The eyes of dogs and humans are made differently. The retinas of humans and dogs alike have light receptors called rods and cones. But, the number of rods and cones in dogs is different from those in humans.

There are fewer cone receptors in a dog’s retina and this is the reason why canines cannot see most of the colors that humans can. The cones in a human’s retina can detect three primary colors, namely blue, green, and red, and all the colors that are formed when these three are combined.

On the other hand, dog cones only can detect two colors, and according to experts, these are most likely to be yellow and blue. The specific colors that a dog can see are not easy to determine although experts claim that they might be the same as what humans see at dusk. Since there are more rods in the eyes of dogs than in humans, this lets them see much better in the dark at night.

The eyes of dogs are also best characterized by the layer of tissue that is not found in human eyes. This layer is known as the tapetum lucidum that reflects the light to the retina. It is also responsible for improving the night vision of dogs. It also explains why the eyes of dogs shine more at night or in the dark.

Unique characteristics of a dog’s eyes

Dogs can see moving objects much better than they can see stationary objects due to the bigger number of rods found in their retinas. It is the reason why one of the most crucial aspects of canine vision is motion sensitivity. This is why even the tiniest change in their owner’s body posture already means a lot to dogs.

Canines may also have one of the finest olfactory lobes that can sense odors as well as other specific scents. However, this is not similar to what they can obtain through their vision. While your pup might be able to recognize you even from a distance, it doesn’t necessarily mean that their vision is better than that of other animals.

Experts claim that the binocular vision of dogs is less than that of humans and they also have less visual acuity. A person with normal eyesight has a 20/20 vision. It is the reason why humans can easily distinguish objects and letters at a 20-foot distance. A dog could be 20 feet away from the object and still see it. They can also see their owner standing 75 feet away since their vision is usually 20/75. But, there are certain breeds of dogs that have a better visual acuity. The perfect example is the Labrador breed that works as seeing dogs. Labradors are also bred due to their better eyesight with a vision almost closer to 20/20.

Can dogs see-through glass? Yes, they can but in such a way that is different from how you see through glass.

You may also want to learn the following dogs guildes