Data
16,794 items of data are available, covering 16,113 participants.
Defined-instances run from 2 to 3, labelled using Instancing
2.
Units of measurement are dioptre.
| Maximum | 12.25 |
| Decile 9 | 3 |
| 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 | -20 |
|
|
- Mean = 0.688966
- Std.dev = 2.41957
- 127 items below graph minimum of -7.5
- 48 items above graph maximum of 8.25
|
2 Instances
Instance 2 : Imaging visit (2014+)
3,492 participants, 3,492 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 | -16 |
|
|
- Mean = 0.736755
- Std.dev = 2.45124
- 35 items below graph minimum of -7.25
- 10 items above graph maximum of 8.5
|
Instance 3 : First repeat imaging visit (2019+)
13,302 participants, 13,302 items
| Maximum | 12.25 |
| Decile 9 | 3 |
| 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 | -20 |
|
|
- Mean = 0.676421
- Std.dev = 2.41103
- 97 items below graph minimum of -7.5
- 36 items above graph maximum of 8.25
|
Notes
Right eye prescription is defined here as Median spherical equivalent value (right) + 0.75
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