What limitations does the person have?

A person diagnosed with deafness is only limited by their hearing. Their other senses will react to things as others' can. Communication would be difficult with a deafened person, because to respond, the other person would have to understand sign language to make out what they're saying. A person would also need some type of assistant to help them, whether it's just a walk in the park or if the deafened person has a medical emergency.