See the detailed discussion of her crimes against the disabled on our forum
A person doesn't have to see poop to pick it up. Like anyone else, a blind person knows which end of the dog is which, and the dog only toilets on command so they know the when and where of poopology. A hand is inserted in a plastic poop bag like a glove and then the scooper feels around for the warm squooshy stuff, grasps it, and turns the bag inside out. It's exactly the same for a sighted person who walks their dog at night and must scoop in the dark.