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To understand the relationship between visual impairment, self-reported eye disease, and the onset of balance problems. Population-based prospective cohort study METHODS Baseline and 3-year follow-up data were used from the Canadian Longitudinal Study on Aging. The Comprehensive Cohort included 30,097 adults ages 45-85 years old recruited from 11 sites across 7 provinces. Balance was measured using the one-leg balance test. Those who could not stand on one leg for at least 60 seconds failed the balance test. Presenting visual acuity was measured usi