Table 1.

Demographic characteristics for intermittent exotropia (IXT) patients

	Total	CI	Basic	P value
N	199	127	72
Boys:Girls(n)	104:95	69:58	35:37	0.71
Age(year)*	9.95 ± 2.73	9.93 ± 2.41	10.00 ± 3.24	0.77
Near Deviation (PD) *	43.59 ± 21.57	46.94 ± 20.53	37.68 ± 22.21	< 0.001
Distance Deviation (PD) *	30.12 ± 18.50	28.36 ± 14.34	33.21 ± 23.96	0.93
SE of right eye(D) *	-2.50 ± 1.45	-2.41 ± 1.45	-2.72 ± 1.43	0.08
SE of left eye(D) *	-2.25 ± 1.50	-2.21 ± 1.47	-2.64 ± 1.54	0.03
Dominant-eye (Right: Left)(n)	95: 104	61:67	34:37	0.55
SE of dominant eye(D) *	-2.25 ± 1.47	-2.09 ± 1.45	-2.46 ± 1.56	0.07
SE of non-dominant eye (D) *	-2.67 ± 1.42	-2.53 ± 1.44	-2.89 ± 1.37	0.05

CI: convergence insufficiency

PD: prism diopters

SE: spherical equivalent

*:data was shown in means ± standard deviation