How good is a dogs sense of sight?
Dogs are naturally farsighted, with a larger field of vision than humans (people can only see about 100 degrees at a time, while a dog’s field of vision extends between 200 and 270 degrees). Additionally, they are colorblind (only perceiving shades of grey); and see better in dim light than humans can, thanks to a reflective layer at the back of the eyes — a holdover from when dogs were more nocturnally active.
