Dementia may cause a person to have hallucinations or see things that aren't there. This is most common in people living with dementia with Lewy bodies, although other types of dementia may also cause hallucinations. 

People with dementia experience changes in how they perceive things. This includes misperceptions and misidentifications, hallucinations, delusions and time-shifting.

Sight and hearing loss are both more common as you get older. For a person with dementia, this can cause extra problems, such as confusion about what's happening around them and problems with communication.

Many people with dementia will have hearing loss, sight loss or both. You might find the tips for communicating helpful.

You may see other health professionals in your home, a care home or in hospital. These professionals provide help with specific areas of physical health listed in this section.