21,244 items of data are available, covering 19,265 participants, encoded using Data-Coding 100515
Defined-instances run from 0 to 2, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
13,611 participants, 13,611 items
Instance 1 : First repeat assessment visit (2012-13)
2,704 participants, 2,704 items
Instance 2 : Imaging visit (2014+)
4,929 participants, 4,929 items
ACE touchscreen question "Which eye(s) are affected by astigmatism?"
Field 5855 was collected from participants who indicated they wear glasses or contact lenses to correct their astigmatism, as defined by their answers to Field 6147
There are no tabulations involving field 5855.
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