Dogs are often thought to be colorblind, yet now it is thought that dogs see some colors, but their spectrum is limited. Eyesight is generally considered the poorest of the dog’s senses. A dog’s eyesight is certainly not as acute as its hearing and sense of smell, but it suits a purpose. Before dogs were domesticated it was more important for a dog to see in low light situations than it was to see a full range of colors. A dog’s eyesight is most effective at dusk, and is best suited to spot prey. The acuity of their eyesight is less than most humans, yet they can see texture and brightness and most importantly movement.

One who plays fetch or Frisbee with their dog can attest to the ability of their dog to clearly see the toy they are chasing or catching. While they rely on smell and sound for much of their ability to track, find, hunt, and navigate the world use of their eyes is also important. For dogs that are blind, fortunately they typically can adapt well as they have other stronger senses. However, there usually are some modifications that need to be made for blind dogs so that they can find their way and recognize the people around them. It is relatively common for older dogs’ eyesight to either decrease, or for them to loose their vision altogether. With some assistance these dogs can still have happy active lives.