A, AGE, ALONE, AN, ASSISTANT, BLIND, CANE, CAUCASIAN, CHEERFUL, CLOSE, CLOSE-UP, CONTROL, CROPPED, DISEASE, ELDERLY, ENJOY, EYESIGHT, FEET, GLASSES, GRANDMOTHER, GRASS, GREEN, GUIDANCE, GUIDE, IN, INDEPENDENT, LADY, LAWN, LEGS, MOBILITY, MOVE, OF, OLD, ON, OPTHALMOLOGY, OUTDOORS, PARK, PENSIONER, RETIRED, SEE, SENIOR, SENSORY, SHOES, SIGHT, SIGHTLESS, SIGNS, SPRING, STICK, SUMMER, SUNGLASSES, SURFACE, TACTILE, THE, UP, USING, VISION, VISUAL, WALK, WOMAN,