Table 3.
Postoperative exodrift between subgroups.
| Exodrift∗ (pd) | Distance measurement | Near measurement | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fusion | Stereoacuity | Fusion | Stereoacuity | |||||||||||||||||
| Present | n | Absent | n | p § | High-grade | n | Moderate-low-grade | n | p § | Present | n | Absent | n | p § | High-grade | n | Moderate-low-grade | n | p § | |
| From postoperative month 1 to month 6† | 4.4 ± 6.6 | 30 | 1.4 ± 4.9 | 5 | 0.45 | 2.0 ± 7.9 | 13 | 4.1 ± 5.6 | 26 | 0.20 | 3.3 ± 5.8 | 35 | — | 0 | — | 3.7 ± 6.2 | 20 | 2.7 ± 5.1 | 19 | 0.63 |
| From postoperative month 1 to final follow-up† | 7.3 ± 7.7 | 30 | 5.8 ± 9.3 | 5 | 0.63 | 7.5 ± 7.2 | 13 | 7.8 ± 10.2 | 26 | 0.97 | 7.2 ± 8.6 | 35 | — | 0 | — | 8.6 ± 8.9 | 20 | 7.1 ± 10.1 | 19 | 0.57 |
| From postoperative month 6 to final follow-up‡ | 3.6 ± 9.6 | 31 | 1.8 ± 4.3 | 4 | 0.67 | 4.8 ± 8.7 | 15 | 3.9 ± 11.6 | 24 | 0.86 | 4.9 ± 9.4 | 37 | — | 0 | — | 4.3 ± 7.8 | 24 | 5.3 ± 11.9 | 15 | 0.68 |
Patients were divided into 2 subgroups according to (1) Fusion (tested with Worth 4 dots): Present (4 dots) vs Absent (2 or 3 dots) and (2) Stereoacuity: High-grade (≤ 60 arcsec) vs moderate-low-grade (> 60 arcsec). ∗Data are presented as mean ± sd; A positive value means a drift towards exodeviation. ‡Patients were divided into subgroups based on binocular function measured at 1 month postoperatively. ‡Patients were divided into subgroups based on binocular function measured at 6 months postoperatively. §two-side Wilcoxon rank-sum test, α = 0.05.