Table 2.

Positions of the rectus muscle pulleys

Group	Positions of the rectus muscle pulley: mean ± SD (mm)
	LR pulley		SR pulley		IR pulley		MR pulley
	Horizontal	Vertical	Horizontal	Vertical	Horizontal	Vertical	Horizontal	Vertical
SES	10.15 ± 0.59	– 3.46 ± 1.54	– 0.90 ± 0.81	10.83 ± 0.97	– 4.21 ± 1.10	– 12.38 ± 1.32	– 12.71 ± 0.78	– 1.85 ± 1.57
Young healthy participants [11]	10.16 ± 0.84	– 1.99 ± 1.07	– 1.56 ± 0.82	10.65 ± 0.86	– 4.48 ± 0.98	– 12.33 ± 0.84	– 13.22 ± 0.74	– 1.11 ± 0.98
P-value*	0.77	< 0.01	0.04	0.36	0.62	0.82	0.10	0.18

LR lateral rectus, SR superior rectus, IR inferior rectus, MR medial rectus, SD standard deviation, SES patients with sagging eye syndrome

*Wilcoxon rank sum test with continuity correction