Ключевые слова: adult, age, background, blind, blindness, cane, care, careful, city, closeup, crossing, crosswalk, day, difficulty, disability, disabled, eye, eyesight, hand, handicapped, health, help, illness, impaired, legs, lifestyle, long, male, man, mature, middle, moving, ophthalmology, orientation, outdoors, pedestrian, person, problem, road, senior, sight, sightless, stick, street, summer, vision, visual, walk, walking, white,