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This study aimed to explore the current prevalence, causes, and factors associated with visual impairment in a Chinese elderly population. A random sample of 2164 candidates aged ≥70 years was selected. Among them, 1914 participants (response rate 88.4%) underwent comprehensive eye examinations. The prevalence and causes of visual impairment were estimated, and the associated factors were identified. The standardized prevalence of mild visual impairment (6/12 to ≥6/18), moderate to severe visual impairment (MSVI) (6/18 to ≥3/6,
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