Table 3.
Comparison of surgical outcomes.
| ILM flap covering (n = 23) | ILM flap insertion (n = 25) | Total (n = 48) | P | |
|---|---|---|---|---|
| MH closure rate before SOR, n (%) | 17 (73.9) | 20 (80.0) | 37 (77.1) | 0.616 |
| MH remained closed from PPV to the last follow-up, n (%) | 16 (69.6) | 17 (68.0) | 33 (68.8) | 0.907 |
| Final MH closure rate (including after reoperation intervention), n (%) | 19 (82.6) | 21 (84.0) | 40 (83.3) | 1.000* |
| Retinal reattachment rate before SOR, n (%) | 23 (100) | 25 (100) | 48 (100) | 1.000* |
| Retina remains attached from PPV to the last follow-up, n (%) | 18 (78.3) | 20 (80.0) | 38 (79.2) | 1.000* |
| Final Retinal reattachment rate (including eyes filled with SO), n (%) | 23 (100) | 25 (100) | 48 (100) | 1.000* |
| Retina maintained reattachment under SO at last follow-up, n (%) | 2 (8.7) | 1 (4.0) | 3 (6.3) | 0.601* |
| Restoration of EZ at postoperative 12 months, n (%) | 0 | 0 | 0 | > 0.999 |
| Restoration of ELM at postoperative 12 months, n (%) | 0 | 0 | 0 | > 0.999 |
| Presence of HBT, n (%) | 5 (21.7) | 7 (28.0) | 12 (25.0) | 0.617 |
| Presence of gliosis, n (%) | 4 (17.4) | 3 (12.0) | 7 (14.6) | 0.696* |
| Postoperative BCVA at 12 months (logMAR, mean ± SD) | 1.98 ± 0.46 | 1.90 ± 0.42 | 1.94 ± 0.44 | 0.543 |
| Final lens status (phakia/pseudophakia/ aphakia) n (%) | 3(13.0)/8(34.8)/12(52.2) | 6(24.0)/11(44.0)/8(32.0) | 9(18.8)/19(39.6)/20(41.7) | 0.386* |
*Fisher’s exact probability test.
MH macular hole, SOR silicone oil removal, PPV pars planar vitrectomy, SO silicone oil, EZ ellipsoid zone, ELM external limiting membrane, HBT hyperreflective bridging tissue, BCVA best-corrected visual acuity.