Data
15,926 items of data are available, covering 15,322 participants.
Defined-instances run from 2 to 3, labelled using Instancing 
2.
Units of measurement are mm.
| 
| Maximum | 9.2 |  | Decile 9 | 4.8 |  | Decile 8 | 4.3 |  | Decile 7 | 4 |  | Decile 6 | 3.8 |  | Median | 3.6 |  | Decile 4 | 3.4 |  | Decile 3 | 3.2 |  | Decile 2 | 3 |  | Decile 1 | 2.7 |  | Minimum | 1.7 |  |   | 
Mean = 3.66964Std.dev = 0.7912578 items above graph maximum of 6.9 | 
2 Instances
Instance 2 : Imaging visit (2014+)
3,287 participants, 3,287 items
| 
| Maximum | 7.4 |  | Decile 9 | 4.9 |  | Decile 8 | 4.5 |  | Decile 7 | 4.2 |  | Decile 6 | 4 |  | Median | 3.7 |  | Decile 4 | 3.5 |  | Decile 3 | 3.3 |  | Decile 2 | 3.1 |  | Decile 1 | 2.8 |  | Minimum | 1.7 |  |   | 
Mean = 3.81661Std.dev = 0.848853 items above graph maximum of 7 | 
Instance 3 : First repeat imaging visit (2019+)
12,639 participants, 12,639 items
| 
| Maximum | 9.2 |  | Decile 9 | 4.7 |  | Decile 8 | 4.3 |  | Decile 7 | 4 |  | Decile 6 | 3.8 |  | Median | 3.5 |  | Decile 4 | 3.4 |  | Decile 3 | 3.2 |  | Decile 2 | 2.9 |  | Decile 1 | 2.7 |  | Minimum | 1.7 |  |   | 
Mean = 3.63142Std.dev = 0.7710025 items above graph maximum of 6.7 | 
Notes
Pupil size (right)
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