The use of a white cane signals that someone is blind or has low vision. There are different types of canes. Your eligibility and the laws you must follow may depend on where you live.
History of the White Cane - Queensland Blind Association
Stepping Toward Independence - ConnectCenter
White Cane for the Blind and Visually Impaired - How to Get One Free
Debunking Sight Loss Myths – Part Three - Using A White Cane
Incorporating blindness canes into Halloween costumes – Perkins School for the Blind
White cane - Wikipedia
Free White Cane Program National Federation of the Blind
A white cane for a visually impaired person, and training for it's use.
Robotic 'white cane' helps visually impaired navigate indoors - GPS World
Why is creating electronic canes for the blind so hard? — WHYY
White Cane Awareness Day Walk for Independence Lighthouse for the Visually Impaired and Blind
Sonar sticks use ultrasound to guide blind people
About the White Cane
The identified factors in technology-assisted white cane. Full-size