ArticleNeuroepidemiology2021
The Association of Cognitive and Visual Function in a Nationally Representative Study of Older Adults in India.
Article in Neuroepidemiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 18 citations in OpenAlex.
- The association between stereoscopic vision and cognitive function on community-dwelling older adults: a cross-sectional study.BMC geriatrics · 2025Article
- Article
- Impact of functional level on cognitive function in adults aged 45 and older than 45 years in the Korean Longitudinal Study of Aging.Australasian journal on ageing · 2025Article
- Residential Differences and Depression Among Older Adults With Dual Sensory Loss.JAMA otolaryngology-- head & neck surgery · 2025Article
- Article
- The Influence of Vision Impairment on the Measurement of Cognition in Older Adults in India: Findings From LASI-DAD.Innovation in aging · 2024Article
- Prevalence and predictors of vision impairment among older adults in India: evidence from LASI, 2017-18.BMC ophthalmology · 2023Article
- Association between vision and cognitive function among community-dwelling older adults in Selangor, Malaysia.International journal of ophthalmology · 2023Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
introductionDue to population aging, India is poised to experience a large increase in the burden of both dementia and vision impairment (VI). Prior studies from other settings suggest that VI may be a modifiable risk factor for cognitive decline and dementia. However, to date, no studies have examined the association of impaired visual acuity and cognition in India.
methodsA total of 3,784 participants in wave 1 of the population-based Diagnostic Assessment of Dementia for the Longitudinal Aging Study in India underwent visual acuity testing and a cognitive test battery. Multivariable linear regression was used to model the cross-sectional associations of mild (<6/12-6/16), moderate (<6/18-6/60), and severe visual acuity impairment/blindness (<6/60) with cognitive performance scores corresponding to total cognition, orientation, memory, language/fluency, executive function, and informant-reported cognitive status. Models were adjusted for demographic, socioeconomic, and health characteristics.
resultsThe weighted percentage of participants with any VI was 52.6%. VI was independently associated with lower cognitive scores across all domains, even after adjustment for known dementia risk factors. In fully adjusted models of total cognition (mean score: 130.7), mild, moderate, and severe VI/blindness were associated with a significant change of -3.5 (95% CI: -6.3, -0.6), -8.2 (95% CI -10.5, -5.6), and -16.8 (95% CI -22.3, -11.3) units, respectively. A dose-response association between level of VI and cognitive function was observed for all cognitive outcomes except for language/fluency domain scores. Associations were robust when cognitive tests dependent on visual function were excluded. Across each fully adjusted model of total, domain-specific, and informant-reported cognitive performance, moderate VI was equivalent to 5-9 years of cognitive aging. DISCUSSION/
conclusionThis study illustrates that VI is cross-sectionally associated with lower cognitive performance, largely in a dose-response pattern, across various cognitive domains in the Indian population. These findings are important for informing future longitudinal and interventional studies.
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