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137,862 items of data are available, covering 133,604 participants, encoded using Data-Coding 100274
Defined-instances run from 0 to 1, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
117,572 participants, 117,572 items
Instance 1 : First repeat assessment visit (2012-13)
20,290 participants, 20,290 items
Visual acuity (left) method
1 Related Data-Fields
|5185||Visual acuity measured (right)||Current Field is the opposite-side complement to Field 5185|