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364,589 items of data are available, covering 121,681 participants, encoded using Data-Coding 33
Defined-instances run from 0 to 1, labelled using Instancing 2
Array indices run from 0 to 5.
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
107,500 participants, 312,781 items
Instance 1 : First repeat assessment visit (2012-13)
17,827 participants, 51,808 items
This is the regularity index of the level of irregular astigmatism (1=A, 2=B, 3=C) as part of the keratometry result taken at 3mm for the left eye
1 Related Data-Field
|5164||3mm regularity index for irregular a ...||Current Field is the opposite-side complement to Field 5164|
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