Table 3.

Preoperative and postoperative deviation in primary position for unilateral cases in ISM and VM groups

	ISM (n=10)	VM (n=12)	P value
Horizontal deviation, mean±SD (range),Δ
Baseline	81.2±5.9 (70–90)	65.9±11.3 (50–85)	0.001*
1 month after surgery	−0.5±13.0 (−25 to 20)	−4.0±7.2 (−15 to 5)	0.63
Improvement at 1 month	81.7±9.4 (65–95)	69.9±10.5 (50–85)	0.01*
The last visit after surgery	0.2±12.5 (−25 to 20)	−0.3±4.8 (−10 to 10)	0.67
Improvement at the last visit	81.0±8.8 (65–95)	66.2±9.4 (50–85)	0.003*
Drift from 1 month to the last visit (eso:no:exo)	3:5:2	5:7:0	0.25†
At the last visit
Success, no (%)	8 (80)	12 (100)	0.20†
Vertical deviation, no (%)	5 (50)	3 (25)	0.38†
Objective extorsional deviation, no (%)	2 (20)	5 (42)	0.38†
Subjective extorsional deviation, no (%)	1 (10)	2 (17)	1.00†

*P<0.05.

†Pearson χ² test or Fisher’s exact test.

ISM, inferior rectus belly transposition plus augmented superior rectus transposition plus medial rectus recession; VM, modified vertical rectus belly transposition plus medial rectus recession.