Vision impairment and cognitive function among urban-dwelling malaysians aged 55 years and over from the Malaysian Elders Longitudinal Research (MELoR) study |
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| Institution: | 1. Department of Ophthalmology, University Malaya Medical Centre, Kuala Lumpur, Malaysia;2. University of Malaya Eye Research Centre (UMERC), Department of Ophthalmology, University of Malaya, Malaysia;3. Division of Geriatric Medicine, Department of Medicine, University of Malaya Medical Centre, Kuala Lumpur, Malaysia;4. Department of Medical Sciences, Faculty of Healthcare and Medical Sciences, Sunway University, Bandar Sunway, Malaysia;1. Faculty of Education and Social Work, University of Sydney, Australia;2. School of Education, University of New South Wales, Australia;3. Psychological Studies Group, National Institute of Education, Singapore;1. The Northwestern State Medical University named after I.I. Mechnikov, St. Petersburg, 194 291 Prosveshenya 45 Russia;2. Institut de Recherche Santé et Société, Université Catholique de Louvain, Clos Chapelle-aux-Champs, 30 bte 30.05, 1200 Woluwe-Saint-Lambert (UCLBrussels), Brussels, Belgium;3. Department of Public Health and Primary Care, KULeuven, 3000 Kapucijnenvoer 35 blok d, box 7001, Leuven, Belgium;1. Division of Aging, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA;2. VA Boston Healthcare System, Geriatric Research, Education, and Clinical Center (GRECC), Massachusetts Veterans Epidemiology and Research Information Center (MAVERIC), Boston, MA, USA;1. Network Aging Research, Heidelberg University, Bergheimer Str. 20, 69115, Heidelberg, Germany;2. Laboratory of Movement Analysis and Measurement, Ecole Polytechnique Federale de Lausanne, 1015, Lausanne, Switzerland;3. Department of Clinical Gerontology and Rehabilitation, Robert Bosch Hospital Stuttgart, Auerbachstr. 110, 70376, Stuttgart, Germany;4. Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Høgskoleringen 1, 7491, Trondheim, Norway;5. Department of Electrical, Electronic and Information Engineering «Guglielmo Marconi», University of Bologna, Viale del Risorgimento 2, 40136, Bologna, Italy;6. Department of Human Movement Sciences, @AgeAmsterdam, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Van der Boechorststraat 7, 1081 BT, Amsterdam, the Netherlands;7. Department of Medicine and Aged Care, @AgeMelbourne, The Royal Melbourne Hospital, The University of Melbourne, Centre for Medical Research Building, Victoria, 3010, Melbourne, Australia;8. Institute of Sports and Sports Sciences, Heidelberg University, Im Neuenheimer Feld 700, 69120, Heidelberg, Germany;1. Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Binjiang District, Hangzhou 310051, Zhejiang, China;2. Tongxiang Center for Disease Control and Prevention, 17 West Zhongshan Road, Wutong Street, Tongxiang 314500, Zhejiang, China;1. Department of Medicine (DIMED), Geriatrics Division, University of Padua, Italy;2. Department of Geriatrics, Azienda Sanitaria dell''Alto Adige, Bolzano, Italy |
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| Abstract: | IntroductionPublished literature on vision impairment and cognitive function amongst older Malaysians remains scarce. This study investigates the association between vision impairment and cognitive function in an older Malaysian population.MethodsSubjects aged 55 years and above from the Malaysian Elders Longitudinal Research (MELoR) study with available information on vision and Montreal Cognitive Assessment (MoCA) scores were included. Data were obtained through a home-based interview and hospital-based health check by trained researchers. Visual acuity (VA) was assessed with logMAR score with vision impairment defined as VA 6/18 or worse in the better-seeing eye. Cognition was evaluated using the MoCA-Blind scoring procedure. Those with a MoCA-Blind score of <19/22 were considered to have cognitive impairment.ResultsData was available for 1144 participants, mean (SD) age = 68.57 (±7.23) years. Vision impairment was present in 143 (12.5 %) and 758 (66.3 %) had MoCA-Blind score of <19. Subjects with vision impairment were less likely to have a MoCA-Blind score of ≥19 (16.8 % vs 36.2 %, p < 0.001). Vision impairment was associated with poorer MoCA-Blind scores after adjustments for age, gender, and ethnicity (β = 2.064; 95 % CI, ?1.282 to 3.320; P = 0.003). In those who had > 6 years of education attainment, vision impairment was associated with a significant reduction of cognitive function and remained so after adjustment for age and gender (β = 1.863; 95 % CI, 1.081–3.209; P = 0.025).ConclusionOur results suggest that vision impairment correlates with cognitive decline. Therefore, maintaining good vision is an important interventional strategy for preventing cognitive decline in older adults. |
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| Keywords: | Vision impairment Cognitive function Aging MELoR |
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