Data
306,129 items of data are available, covering 107,548 participants.
Defined-instances run from 0 to 1, labelled using Instancing 
2.
Array indices run from 0 to 5.
| 
| Maximum | 180 |  | Decile 9 | 173 |  | Decile 8 | 166 |  | Decile 7 | 154 |  | Decile 6 | 130 |  | Median | 103 |  | Decile 4 | 85 |  | Decile 3 | 58 |  | Decile 2 | 22 |  | Decile 1 | 8 |  | Minimum | 0 |  |   | 
There are 181 distinct values.Mean = 98.8274Std.dev = 61.9351 | 
2 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
95,174 participants, 263,676 items
| 
| Maximum | 180 |  | Decile 9 | 174 |  | Decile 8 | 166 |  | Decile 7 | 155 |  | Decile 6 | 131 |  | Median | 103 |  | Decile 4 | 84 |  | Decile 3 | 55 |  | Decile 2 | 20 |  | Decile 1 | 7 |  | Minimum | 0 |  |   | 
There are 181 distinct values.Mean = 98.5232Std.dev = 62.5771 | 
Instance 1 : First repeat assessment visit (2012-13)
15,292 participants, 42,453 items
| 
| Maximum | 180 |  | Decile 9 | 172 |  | Decile 8 | 163 |  | Decile 7 | 149 |  | Decile 6 | 124 |  | Median | 103 |  | Decile 4 | 89 |  | Decile 3 | 72 |  | Decile 2 | 35 |  | Decile 1 | 10 |  | Minimum | 0 |  |   | 
There are 181 distinct values.Mean = 100.717Std.dev = 57.7525 | 
Notes
This is the cylindrical power angle of keratometry results taken at 6mm for the left eye (blank indicates none)
1 Related Data-Field
| Field ID | Description | Relationship | 
|---|
| 5114 | 6mm cylindrical power angle (right) | Current Field is the opposite-side complement to  Field 5114 |