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The sense of sight is a very important sense for humans, this sense of sight also provides much information for humans to obtain, while the rest of the information comes from the other five senses. Then, we can understand someone who has visual impairment, and therefore the activity will be very disturbed and limited, therefore the information obtained will be reduced. For now generally, blind people use walking aids in the form of trained dogs or canes to help increase independence and safety when walking.