Table 4. Mean preoperative and postoperative Hertel values.

Hertel value	No. of eyes	Preoperative	Postoperative	gP	Difference
Medial-inferior	15	26.8±3.3 (22-32)	19±3.4 (13-25)	<0.001	7.8±1.9 (4-11)a,b,f
Medial-lateral	181	25.9±3.3 (19-35)	20.1±2.6 (14-27)	<0.001	5.7±2.7 (1-13)a,c,d
Medial-lateral-inferior	39	27±3.3 (20-35)	20.1±3.8 (13-28)	<0.001	6.9±2.7 (3-14)c,e,f
Lateral	13	23.6 ±1.8 (21-27)	19.9±2.1 (16-23)	0.002	3.7±1.6 (2-6)b,d,e

According to the Bonferroni adjustment, P<0.0125 was significant. Intergroup comparisons of preoperative and postoperative Hertel values (Kruskal-Wallis test). ^aP=0.001, medial-inferior vs medial-lateral groups; ^bP=0.001, medial-inferior vs lateral groups; ^cP=0.030, medial-lateral vs medial-lateral-inferior groups; ^dP=0.003, medial-lateral vs lateral groups; ^eP<0.001, medial-lateral-inferior vs lateral groups; ^fP=0.09, medial-inferior vs medial-lateral-inferior groups. ^gIntragroup comparisons of preoperative and postoperative Hertel values (Wilcoxon signed rank test).