Prevalence and Associated Factors of Uncorrected Refractive Error in Older Adults in a Population-Based Study in France.

Importance: Uncorrected refractive error (URE) is a common cause of visual impairment, but its prevalence in groups of older adults who could be pragmatic targets for improving optical correction remains unknown.

Objectives: To estimate the prevalence of URE in older adults, particularly in those with age-related eye disease and those who are unable to attend an outpatient clinic, and to identify the factors associated with URE.

Design, Setting, And Participants: This population-based cross-sectional analysis included 707 adults 78 years or older from the Alienor Study in Bordeaux, France.

Unhealthy behaviours and risk of visual impairment: The CONSTANCES population-based cohort.

Unhealthy behaviours are linked to a higher risk of eye diseases, but their combined effect on visual function is unknown. We aimed to examine the individual and combined associations of diet, physical activity, smoking and alcohol consumption with visual impairment among French adults. 38 903 participants aged 18-73 years from the CONSTANCES nationwide cohort (2012-2016) with visual acuity measured and who completed, lifestyle, medical and food frequency questionnaires were included.