Time of onset of haemorrhage following vitrectomy
| Time | FVI patients | Non-FVI patients |
| Range | 0–30 months | 0–13 weeks |
| Mean | 27 weeks | 4 weeks |
| Median | 6 weeks | 3.5 weeks |
| Time of haemorrhage for each patient (weeks) | 0, 0, 2, 2, 4, 6, 8, 13, 38, 99, 129 | 0, 0, 0, 3, 4, 6, 8, 13 |