Table 9.
Grading large/small venule leak
| Lesion | Grading | Definition | Figures |
|---|---|---|---|
| Large/small venule leak | Cannot grade | No gradeable images exist | None |
| Absent | No large/small venule leak is seen on any gradeable image | None | |
| Grade 1 | <1/3 of all small and large venule segments are blurred and/or show increased brightness over time, compared to adjacent vessel segments, for the whole retina | 24 | |
| Grade 2 | 1/3–2/3 of all small and large venule segments are blurred and/or show increased brightness over time, compared to adjacent vessel segments, for the whole retina | 25 | |
| Grade 3 | >2/3 of all small and large venule segments are blurred and/or show increased brightness over time, compared to adjacent vessel segments, for the whole retina | 26 |