If dogs are color blind, how do seeing-eye dogs help the blind cross the road?

How do they see the street lights?





Also, if the blind is blind, how do they feed the dog when they get home and unleash then and all. How do they take care of the dog is they are blind?If dogs are color blind, how do seeing-eye dogs help the blind cross the road?
People who are color blind can often distinguish color very easily - they see things in shades of grey, rather than in colors. But they can distinguish between the shades - just as you can tell the difference between a pale blue, a greenish blue, an electric blue, a cobalt blue and a midnight blue.


So the dogs can distinguish the difference between red and green traffic lights, even though they can't see them as red or green. They also look at the traffic and will not leave the pavement unless it is safe to do so - regardless of what color the light is.


Most blind people have some vestigial vision, but even those who do not can care for their dogs by feel. There are utensils and implements with braille markings on them (an alphabet system, in raised dots, that can be 'read' with the fingertips) so they can cook for themselves, run appliances in their homes, etc. And in the home of a person with visual impairments, things are always put back in the same place. If you go into your bedroom at night, even without turning on the lights, you can find your way around because you know where things are. It's the same with the blind person - they know where things are. Unleashing a dog doesn't requre sight - just practice, and care of the dog - food, water, exercise, is also not difficult to accomplish once you have gotten used to the routine.If dogs are color blind, how do seeing-eye dogs help the blind cross the road?
dogs are not colored blind, they see colors in diff hues and tone than humans do.


the other half of your question is best answered by cindy (she use to do stuff with service dogs)
they smell it.
Although the dogs can be trained to navigate various obstacles, they are partially (red-green) color blind and are not capable of interpreting street signs. The human half of the guide dog team does the directing, based upon skills acquired through previous mobility training. The handler might be likened to an aircraft's navigator, who must know how to get from one place to another, and the dog is the pilot, who gets them there safely.
Yes dogs ARE color blind, they see in two colors instead of three exactly the same as some color blind people. The difference between a dogs eyes and ours is that a dog has fewer cones and only two types of cones instead of three (collect color) and more rods (collect light) so a dog sees colors about like a color blind person, and sees at night about like a person using night vision goggles.





We see ';VIBGYOR'; (Violet, Indigo, Blue, Green, Yellow, Orange, Red)


dogs see ';VIBYYYR'; (Violet, Indigo, Blue, Yellow, Yellow, Yellow, and Red). The colors Green, Yellow, and Orange all look alike to dogs


Which means that they have blue receptors and red receptors but no green receptors.
Blind people can do very well on their own if they are trained properly.





There are services for people who are blind where they can learn how to cook, feed a pet, take care of themselves, apply makeup, do laundry and so on.





Guide dogs and their owners are extensively trained.





It is a lot more than just looking at lights.


They learn how to watch for cars, go around obstacles, etc. and a blind person can hear when traffic stops or there are cars coming.