Data
13,573 items of data are available, covering 12,900 participants.
Defined-instances run from 2 to 3, labelled using Instancing 
2.
Units of measurement are degrees.
| 
| Maximum | 180 |  | Decile 9 | 158 |  | Decile 8 | 119 |  | Decile 7 | 101 |  | Decile 6 | 89 |  | Median | 80 |  | Decile 4 | 68 |  | Decile 3 | 48 |  | Decile 2 | 25 |  | Decile 1 | 10 |  | Minimum | 0 |  |   | 
There are 181 distinct values.Mean = 78.82Std.dev = 50.3857 | 
2 Instances
Instance 2 : Imaging visit (2014+)
3,195 participants, 3,195 items
| 
| Maximum | 180 |  | Decile 9 | 157 |  | Decile 8 | 119 |  | Decile 7 | 103 |  | Decile 6 | 94 |  | Median | 83 |  | Decile 4 | 72 |  | Decile 3 | 54 |  | Decile 2 | 28 |  | Decile 1 | 10 |  | Minimum | 0 |  |   | 
There are 181 distinct values.Mean = 80.7606Std.dev = 49.4034 | 
Instance 3 : First repeat imaging visit (2019+)
10,378 participants, 10,378 items
| 
| Maximum | 180 |  | Decile 9 | 159 |  | Decile 8 | 119 |  | Decile 7 | 101 |  | Decile 6 | 88 |  | Median | 79 |  | Decile 4 | 66 |  | Decile 3 | 46 |  | Decile 2 | 24 |  | Decile 1 | 10 |  | Minimum | 0 |  |   | 
There are 181 distinct values.Mean = 78.2226Std.dev = 50.6693 | 
Notes
Keratometry median cylinder axis (right)
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