How Skull Types Affect Vision
The dog's field of vision is heavily affected by breed and skull type. Because of the placement of their eyes on the skull, most dogs have good lateral vision.
You can see here that eye placement on the head according to breed has quite an impact.
The total field of view for the average dog is about 60 to 70 degrees greater than that of humans. Although this is advantageous for the dog to scan the horizon and locate moving objects, there is reduced binocular vision as compared to humans.