[Sensory impairments and dementia].

In recent years, research has consistently reported an association between hearing- and vision loss and mental health outcomes. Whether treating these condition in elders improves cognition has been addressed by several studies. Observational data suggest that treatment positively impacts cognition, even though more research is needed. Nevertheless, because hearing loss is suspected to account for 9% of dementia cases, and also because these factors are one of the few potentially modifiable factors from a dementia prevention perspective, the need to stimulate research to have clearer knowledge about the benefits of treating hearing and/or vision loss on cognitive outcomes is urgent.