Dogs may have great night vision, but they don’t have perfect eyesight when compared to humans. The typical visual acuity of a dog is 20/75 compared to 20/20, which is the normal visual acuity of humans. This means that if a person could identify details of an object from 75 feet away, a dog would need to be 20 feet away to start to see the same details.
With all these factors taken into account, you may think that your eyes are superior to your canine friend’s since you have better visual acuity and can see more colors, but that is not the case. Their eyes are simply different than ours and what dogs lack from their daytime visual abilities, they more than make up for with their excellent night vision.