Data
375,742 items of data are available, covering 124,406 participants.
Defined-instances run from 0 to 1, labelled using Instancing 
2.
Array indices run from 0 to 5.
Units of measurement are diopters.
| Maximum | 0 |  
| Decile 9 | -0.26 |  
| Decile 8 | -0.39 |  
| Decile 7 | -0.5 |  
| Decile 6 | -0.61 |  
| Median | -0.73 |  
| Decile 4 | -0.86 |  
| Decile 3 | -1.02 |  
| Decile 2 | -1.23 |  
| Decile 1 | -1.62 |  
| Minimum | -11.98 |  
 
 | 
 
 | 
- Mean = -0.874688
 
- Std.dev = 0.665079
 
- 5862 items below graph minimum of -2.98
 
  | 
 
2 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
109,829 participants, 322,010 items
| Maximum | 0 |  
| Decile 9 | -0.26 |  
| Decile 8 | -0.39 |  
| Decile 7 | -0.5 |  
| Decile 6 | -0.61 |  
| Median | -0.73 |  
| Decile 4 | -0.86 |  
| Decile 3 | -1.02 |  
| Decile 2 | -1.23 |  
| Decile 1 | -1.62 |  
| Minimum | -11.98 |  
 
 | 
 
 | 
- Mean = -0.87574
 
- Std.dev = 0.666091
 
- 5052 items below graph minimum of -2.98
 
  | 
Instance 1 : First repeat assessment visit (2012-13)
18,388 participants, 53,732 items
| Maximum | 0 |  
| Decile 9 | -0.26 |  
| Decile 8 | -0.38 |  
| Decile 7 | -0.49 |  
| Decile 6 | -0.6 |  
| Median | -0.72 |  
| Decile 4 | -0.85 |  
| Decile 3 | -1.01 |  
| Decile 2 | -1.23 |  
| Decile 1 | -1.63 |  
| Minimum | -8.82 |  
 
 | 
 
 | 
- Mean = -0.868386
 
- Std.dev = 0.658945
 
- 794 items below graph minimum of -3
 
  | 
 
Notes
This is the cylindrical power of keratometry results taken at 3mm for the left eye (0 indicates none)
1 Related Data-Field
| Field ID | Description | Relationship | 
| 5116 | 3mm cylindrical power (right) | Current Field is the opposite-side complement to  Field 5116 |