Prevalence and Correlates of Vision Impairment and Its Association With Cognitive Impairment Among Older Adults in India: An Epidemiological Study
Abstract BackgroundLike other major chronic diseases, vision impairment is an independently associated risk factor of cognitive decline among older individuals. We in this study, aim to investigate what are the predictors of vision impairment in old age and how impaired vision is associated with cognitive impairment among the aging population.MethodsThe present research used data from Building a Knowledge Base on Population Aging in India. The effective sample size for the present study was 9541 older adults. Descriptive statistics and bivariate analysis was used to find the preliminary results. Further, binary logistic regression analysis was been done to fulfil the objective of the study.ResultsAbout 6 in every 10 older adults had a problem of vision impairment. Further, nearly 60% of older adults had cognitive impairment in India. Diabetes [OR: 1.55, CI: 1.32-1.81], hypertension [OR: 1.60, CI: 1.42-1.80], heart disease [OR: 1.43, CI: 1.16-1.76] and cataract [OR: 5.97, CI: 4.83-7.38] were the risk factors for vision impairment among older adults. It was revealed that the older adults who had vision impairment were 11% significantly more likely to have cognitive impairment when compared with the older adults who do not suffer from vision impairment [OR: 1.11, CI: 1.01-1.23]. Low psychological health [OR: 1.55; CI: 1.36, 1.77], low ADL [OR: 1.80; CI: 1.43, 2.27], low IADL [OR: 1.26; CI: 1.14, 1.40], poor self-rated health [OR: 1.28; CI: 1.15-1.41] and chronic morbidity [OR: 1.27; CI: 1.14, 1.41] were the significant factors for cognitive impairment among older adults in IndiaConclusionsAdditional efforts in terms of advocacy, availability, affordability, and accessibility especially in a country with a greater illiteracy rate are mandatory to increase the reach of eye-care services and reduce the prevalence of avoidable visual impairment and vision losses that lead to cognitive deficits among the older population.