To bring your dog’s vision into focus, read below.
Despite what you may have heard, not all dogs are colour-blind. They do see colours — just fewer than we do. In the visual spectrum of light wavelengths, dogs lack the ability to see the range of shades from green to red, seeing only in shades of yellow and blue.
Dogs can see flickering light better than humans. Therefore, they may experience television as a series of moving frames rather than as a continuous scene. Some dogs find this irritating.
A dog’s visual acuity is lower than a human’s. A rough estimate is that dogs have about 20/75 vision. This means they can see at 20 feet what a human could see clearly at 75 feet.
Although your pup may not have the colour range and visual focus that you do, his night vision is far superior. Thanks to a reflective structure behind his retina, dogs see objects in the dark as if lit by an eerie glow.