Abstract: ［Abstract］ Objective〖HTSS〗〓To analyze the influence factors of eye position return after surgery in patients with intermittent exotropia.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓Sixtyfive patients with intermittent exotropia were treated with surgery in ophthalmology department of the second hospital of Hebei Medical University. On the first days and one week after operation, the eyes of the patients were followed up for 3-13 months, the amount of eye position was measured in 52 of 65 patients. The amount of the eye position return was measured and influence factors were analyzed.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓The eye position was found significant difference between the first day and one week after operation in the 65 patients(P＜005). During the followup in the 52 patients, there is significant difference between the eye position at the first day and longterm eye position(P＜005). The linear relationship was found in eye position between the first day and longterm. The mean amount of regression in the patients who had near stereoscopic preoperative was found more than that in the patients who had no near stereoscopic preoperative. The patients lack of collection type regressed more than that in the patients with basic type. More regression was found in esophoria group than exotropia group at first day after surgery. The differences were statistically significant(P＜005).
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓The amount of eye position return in the intermittent exotropia patients was correlated with the eye position at the first day, preoperative near stereoscopic and type of exotropia, but was not correlated with age, sex, family history, medical history, refractive status, strabismus angle, binocular visual, anesthesia, operation methods.

Key words: exotropia, orthoptics, root cause analysis