How might a visually impaired person indicate their condition in public?

A visually impaired person may indicate their condition in public by using a white stick or cane. This tool serves multiple purposes, primarily helping the individual navigate their environment safely by detecting obstacles and changes in terrain. The white cane is widely recognized as a symbol of visual impairment and is specifically designed to signal to others that the person may need assistance or may not be able to see clearly.

The use of a white cane not only aids in physical navigation but also raises awareness in the community, encouraging others to be more mindful and considerate. This practice assists in promoting a safer and more accommodating environment for individuals with visual impairments.

While walking slowly, wearing sunglasses, and using bright colors can be related to various personal circumstances or preferences, they do not universally communicate the same clear message about visual impairment as a white cane does. The white cane's significance in society as a recognized identifier for those who are visually impaired is what makes it the correct answer in this context.