It is a common myth that dogs only see in black and white. In truth, dogs possess some of the same nerve receptors in the backs of their eyes that humans have. These receptors are calledcones and allow dogs to see yellows and blues very well.
In fact, much of a dog’s eyesight is processed in the same manner as ours, so they can develop some of our common eye issues. But what happens when dogs begin to lose their eyesight? Is it simply old age, or could there be something else beneath the surface?