Some facts about dog vision:
Dogs notice so much more than we could ever imagine.
Dogs notice motion much better than humans can.
Dogs can see better in dimmer light.
Dogs can see flickering light better than us.
Dogs have trouble focusing on the shaped of different objects, their visual acuity is worse than ours.
Dogs are not colorblind-they can see in shades of blue and yellow.
Apprehensive Oreo 
Interesting facts.
Very interesting. I never knew that dogs can see flickering light better than humans. I wonder why that is?
Yes-who knew! It has to do with their resolution ability which I read is 75 Hz, while human’s resolution ability is 55 Hz. That’s why humans can see tv as a continuous video, while dogs most likely see a series of pictures or flickering lights.
Didn’t know about the last two. Thanks for sharing these facts.