Table 2.
Relationship between factors before surgery for recurrent retinal detachment and the final visual acuity.
| BCVA (logMAR) | P value | |||
|---|---|---|---|---|
| N (eyes) | Average ± SD | 95% CI | ||
| Reason for recurrence of RRD | 0.091∗ | |||
| Reopen of primary breaks | 16 (76%) | 0.59 ± 0.53 | 0.30, 0.87 | |
| New retinal breaks | 5 (24%) | 0.19 ± 0.20 | −0.07, 0.45 | |
| Macular detachment | 0.051∗ | |||
| Present | 11 (52%) | 0.70 ± 0.59 | 0.31, 1.10 | |
| Absent | 10 (48%) | 0.26 ± 0.25 | 0.08, 0.43 | |
| Quadrants of detachment | 0.146∗∗ | |||
| 1 | 2 (10%) | 0.37 ± 0.46 | −3.78, 4.52 | |
| 2 | 8 (38%) | 0.21 ± 0.19 | 0.05, 0.37 | |
| 3 | 4 (19%) | 0.50 ± 0.33 | −0.01, 1.02 | |
| 4 | 7 (33%) | 0.84 ± 0.67 | 0.21, 1.46 | |
| Choroidal detachment | 0.010∗ | |||
| Present | 2 (10%) | 1.61 ± 0.55 | −3.33, 6.55 | |
| Absent | 19 (90%) | 0.37 ± 0.33 | 0.21, 0.53 | |
| Vitreous hemorrhage | 1.000∗ | |||
| Absent | 21 (100%) | 0.49 ± 0.50 | 0.26, 0.72 | |
| Number of retinal breaks | 0.269∗∗ | |||
| 1 | 13 (62%) | 0.52 ± 0.37 | 0.30, 0.75 | |
| 2 | 3 (14%) | 0.08 ± 0.28 | −0.60, 0.76 | |
| 3 | 0 (0%) | NA | NA | |
| 4 | 2 (10%) | 0.38 ± 0.46 | −3.77, 4.52 | |
| 5- | 3 (14%) | 0.83 ± 1.02 | −1.71, 3.37 | |
| Location of the largest break | 0.366∗∗ | |||
| Superotemporal | 13 (62%) | 0.55 ± 0.60 | 0.19, 0.91 | |
| Inferotemporal | 2 (10%) | 0.76 ± 0.09 | −0.03, 1.56 | |
| Superonasal | 1 (5%) | 0.4 | NA | |
| Inferonasal | 5 (24%) | 0.23 ± 0.18 | 0.01, 0.45 | |
| Proliferative viteroretinopathy | 1.000∗ | |||
| Grade B | 21 (100%) | 0.49 ± 0.50 | 0.26, 0.72 | |
| Concurrent cataract surgery | 1.000∗ | |||
| Absent | 21 (100%) | 0.49 ± 0.50 | 0.26, 0.72 | |
| Location of scleral buckle | 0.887∗ | |||
| Encircling | 18 (86%) | 0.50 ± 0.54 | 0.23, 0.77 | |
| Segmental | 3 (14%) | 0.44 ± 0.24 | −0.16, 1.04 | |
| Intraocular tamponade | 0.883∗ | |||
| SF6 | 12 (57%) | 0.55 ± 0.62 | 0.13, 0.97 | |
| Silicone oil | 9 (43%) | 0.44 ± 0.36 | 0.17, 0.72 | |
| Removal of ILM | 0.534∗ | |||
| Present | 3 (14%) | 0.56 ± 0.36 | −0.32, 1.44 | |
| Absent | 18 (86%) | 0.48 ± 0.53 | 0.22, 0.74 | |
| Use of triamcinolone | 0.771∗ | |||
| Present | 19 (90%) | 0.51 ± 0.52 | 0.26, 0.76 | |
| Absent | 2 (10%) | 0.31 ± 0.12 | −0.81, 1.43 | |
| Use of perfluorocarbon liquid | 1.000∗ | |||
| Present | 13 (62%) | 0.52 ± 0.59 | 0.16, 0.88 | |
| Absent | 8 (38%) | 0.44 ± 0.34 | 0.16, 0.73 | |
| Postoperative complications | 0.093∗ | |||
| Present | 1 (5%) | 1.85 | NA | |
| Absent | 20 (95%) | 0.41 ± 0.37 | 0.21, 0.54 | |
BCVA: best-corrected visual acuity. LogMAR: logarithm of minimal angle of resolution. SD: standard deviation. CI: confidence interval. RRD: rhegmatogenous retinal detachment. NA, not applicable; SF6, sulfur hexafluoride. ILM, internal limiting membrane. ∗Mann–Whitney test. ∗∗Kruskal–Wallis test.