Table 1.

Patient Characteristics

Patient	Sex	Age at Onset (mo)	Age at Surgery (mo)	Duration of ET (mo)	Preop Angle (PD)	Adequate Alignment at 8 wk Postop*	Adequate Alignment at mVEP*	Age at mVEP (mo)	Amblyopia at mVEP†	Lang Stereo at mVEP (arc sec)	DVD at mVEP	Symmetric mVEP‡ (AI)
Early surgery (n = 8)
E1	F	2	8	6	45	Yes	Yes	26	No	400	No	Yes (0.43)
E2	M	2	8	6	30	Yes	Yes	25.5	No	N§	No	Yes (0.37)
E3	M	3	9.5	6.5	35	Yes	Yes	25.5	No	600	No	Yes (0.43)
E4	M	2	8.5	6.5	40	Yes	Yes	26	Yes	200	No	Yes (0.51)
E5	F	2	8.5	6.5	30	Yes	Yes||	27	No	N	Yes	Yes (0.25)
E6	M	2	9	7	40	Yes	No	25	No	N	No	Yes (0.50)
E7	F	2	5	3	45	Yes	Yes	27	Yes	N	No	Yes (0.52)
E8	F	3	6	3	45	Yes	Yes	24	No	400	No	No (0.59)
Standard surgery (n = 8)
S1	M	2	13	11	40	Yes	No	28	Yes	600¶	No	Yes (0.49)
S2	M	3	14	11	45	Yes	No	26	No	N	Yes	Yes (0.37)
S3	M	2	18	16	40	Yes	Yes	30	No	400	No	No (0.78)
S4	F	4	16	12	45	Yes	Yes	25	No	400	No	No (0.68)
S5	F	2	18	16	45	Yes	Yes	24	No	N	No	No (0.59)
S6	F	2	11	9	30	No	Yes||	25	No	600	No	No (0.85)
S7	M	6	16	10	35	Yes	No	26	Yes	N	No	Yes (0.53)
S8	M	3	11	8	50	Yes	No	24	No	600¶	No	No (0.88)

ET, esotropia; Preop, preoperative; PD, prism diopters; Postop, postoperative; DVD, dissociated vertical deviation.

^*Adequate alignment was defined as a microtropia or a small-angle esotropia ≤10 PD.

^†Amblyopia was defined as interocular acuity difference less than 0.3 logMAR.

^‡Symmetric mVEP was defined as asymmetry index (AI) within 95% CI of normal group mean.

^§N denotes absent or not measurable Lang stereopsis due to poor cooperation.

^||After second surgery for residual ET.

^¶After correction of residual esotropia with prisms.