Data
9,686 items of data are available, covering 9,686 participants.
Defined-instances run from 2 to 3, labelled using Instancing
2.
Units of measurement are dioptre.
| Maximum | 13 |
| Decile 9 | 3.25 |
| Decile 8 | 2.25 |
| Decile 7 | 1.75 |
| Decile 6 | 1.25 |
| Median | 1 |
| Decile 4 | 0.5 |
| Decile 3 | 0 |
| Decile 2 | -0.75 |
| Decile 1 | -2.25 |
| Minimum | -15.25 |
|
|
- Mean = 0.721634
- Std.dev = 2.46335
- 70 items below graph minimum of -7.75
- 15 items above graph maximum of 8.75
|
2 Instances
Instance 2 : Imaging visit (2014+)
3,293 participants, 3,293 items
| Maximum | 10 |
| Decile 9 | 3.25 |
| Decile 8 | 2.25 |
| Decile 7 | 1.75 |
| Decile 6 | 1.25 |
| Median | 1 |
| Decile 4 | 0.5 |
| Decile 3 | 0 |
| Decile 2 | -0.5 |
| Decile 1 | -2 |
| Minimum | -14.25 |
|
|
- Mean = 0.793805
- Std.dev = 2.43119
- 25 items below graph minimum of -7.25
- 6 items above graph maximum of 8.5
|
Instance 3 : First repeat imaging visit (2019+)
6,393 participants, 6,393 items
| Maximum | 13 |
| Decile 9 | 3.25 |
| Decile 8 | 2.25 |
| Decile 7 | 1.75 |
| Decile 6 | 1.25 |
| Median | 1 |
| Decile 4 | 0.5 |
| Decile 3 | 0 |
| Decile 2 | -0.75 |
| Decile 1 | -2.25 |
| Minimum | -15.25 |
|
|
- Mean = 0.68446
- Std.dev = 2.47894
- 48 items below graph minimum of -7.75
- 10 items above graph maximum of 8.75
|
Notes
Left eye prescription is defined here as Median spherical equivalent value (left) + 0.75
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