Around one in five people over 60 are affected by dizziness and imbalance. As people get older, the parts of the body which help maintain balance, e.g. the muscles, eyes and vestibular system in the inner ear, begin to function less well. Seeing in bad light may become difficult and there may be a permanent feeling of unsteadiness. Dizziness, however, does not tend to result from age-related changes alone and it is more likely to occur in people with a disorder or as a side-effect to medication.
Source: Meniere’s Society