Data
58,115 items of data are available, covering 54,939 participants, encoded using Data-Coding
100515.
Defined-instances run from 0 to 2, labelled using Instancing
2.
3 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
44,660 participants, 44,660 items
Instance 1 : First repeat assessment visit (2012-13)
8,194 participants, 8,194 items
Instance 2 : Imaging visit (2014+)
5,261 participants, 5,261 items
Notes
ACE touchscreen question "Which eye(s) are affected by presbyopia?"
Field 5610 was collected from participants who indicated they wear glasses or contact lenses to correct their presbyopia, as defined by their answers to Field 6147
0 Tabulations
There are no tabulations involving field 5610.
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