Morphological status of the sub-basal nerve fibre bundles (NFBs) at each time point for the three groups examined
| Groups | No NFB images | Short, unconnected NFBs | Long NFBs without interconnections | Long NFBs with interconnections |
|---|---|---|---|---|
| Group 1 | ||||
| Preoperative | 0 | 0 | 1 | 9 |
| 1 month after LASIK | 8 | 1 | 1 | 0 |
| 3 months after LASIK | 4 | 4 | 2 | 0 |
| 6 months after LASIK | 0 | 1 | 6 | 3 |
| 1 year after LASIK | 0 | 0 | 4 | 6 |
| Group 2 | ||||
| Preoperative | 0 | 0 | 2 | 8 |
| 1 month after LASIK | 9 | 1 | 0 | 0 |
| 3 months after LASIK | 5 | 4 | 1 | 0 |
| 6 months after LASIK | 2 | 3 | 5 | 0 |
| 1 year after LASIK | 0 | 2 | 5 | 3 |
| Group 3 | ||||
| Preoperative | 0 | 0 | 1 | 6 |
| 1 month after LASIK | 5 | 2 | 0 | 0 |
| 3 months after LASIK | 2 | 4 | 1 | 0 |
| 6 months after LASIK | 1 | 2 | 3 | 1 |
| 1 year after LASIK | 0 | 0 | 4 | 3 |









