Vision impairment, vision correction, and cognitive decline among middle-aged and older Chinese: results from the China health and retirement longitudinal study.
Aging Ment Health
; 25(11): 2028-2035, 2021 11.
Article
em En
| MEDLINE
| ID: mdl-33063527
ABSTRACT
OBJECTIVES:
To investigate the associations between vision impairment (VI), vision correction (VC), and cognitive function.METHOD:
We included 20,677 participants aged ≥45 years from the China Health and Retirement Longitudinal Study (2011-2015). Participants were grouped into no VI, distance VI (DVI) only, near VI (NVI) only, or both distance and near VI (DNVI), and VI(+)/VC(-), VI(+)/VC(+), VI(-)/VC(-), or VI(-)/VC(+) further at baseline. Cognitive function at baseline and subsequently every two years was applied as a dependent variable in a generalized estimating equation model.RESULTS:
DVI only, NVI only, and DNVI had significantly worse cognitive function over time than no VI (all p < .05). DNVI had significantly worse cognitive function over time than DVI only and NVI only (all p < .001). VI(+)/VC(+), VI(-)/VC(-), and VI(-)/VC(+) had significantly better cognitive function over time than VI(+)/VC(-) (all p < .05). VI(-)/VC(+) had significantly better cognitive function over time than VI(+)/VC(+) and VI(-)/VC(-) (all p < .05).CONCLUSION:
Cognitive function was worse in middle-aged and older Chinese with VI, especially in those with DNVI. VC was associated with better cognitive function over time regardless of the status of vision.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Aposentadoria
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Disfunção Cognitiva
Tipo de estudo:
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Aged
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Humans
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Middle aged
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article