JAMA ophthalmology
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Visual dysfunction and poor cognition are highly prevalent among older adults; however, the relationship is not well defined. ⋯ In a nationally representative sample of older US adults, vision dysfunction at distance and based on self-reports was associated with poor cognitive function. This was substantiated by a representative sample of US Medicare beneficiaries using self-reported visual function, reinforcing the value of identifying patients with visual compromise. Further study of longitudinal interactions between vision and cognition is warranted.