Not all disabilities are apparent. A person may have trouble following a conversation, may not respond when you call or wave, or may say or do something that seems inappropriate. The person may have a hidden disability, such as low vision, a seizure disorder, hearing loss, a learning disability, a head injury, mental illness, or a health condition. These are just a few of the many different types of hidden disabilities. Don't make assumptions about the person or the disability.
Visual Impairments Be descriptive.
You may have to help orient people with visual impairments and let them know what's coming up. If they are walking, tell them if they have to step up or step down, let them know if the door is to their right or left, and warn them of possible hazards. Be the assistant, not the director. If you are asked for assistance, let a blind person hold your arm to guide them. You don't have to speak loudly to people with visual impairments.