| Value | Category | Cases | |
|---|---|---|---|
| 0 | No discoloration in the eye | 3385 |
80.5%
|
| 1 | Days | 477 |
11.3%
|
| 2 | Months | 270 |
6.4%
|
| 9 | Special answers | 71 |
1.7%
|