BLR-rec与R&R对基本型间歇性外斜视术后屈光状态及视功能的影响对比OA

Objective:To compare the effects of bilateral lateral rectus recession(BLR-rec)and unilateral recess-resect(R&R)on the postoperative refractive status and visual function of children with basic intermittent exotropia.Method:A prospective study was conducted on 100 children with basic intermittent exotropia(33 cm and 6 m horizontal strabismus degree 25-45△)admitted to Xi'an People's Hospital from January to April 2025.They were divided into two groups by the dichromatic method,with 50 cases in each group.The observation group underwent BLR-rec,while the control group underwent R&R.Both groups received visual function training simultaneously 1 month after the surgery.The refractive status,visual function,and recurrence rate 6 months after the surgery were compared between the two groups.Result:There was no statistically significant difference in strabismus degree before the surgery between the two groups(P>0.05).At 2 weeks,1 month,3 months and 6 months after the surgery,the strabismus degree of both groups was lower than that before the surgery,and that of the observation group was lower than that of the control group(P<0.05).There were no statistically significant differences in the improvement rates of visual function between the two groups at 2 weeks,1 month,3 months and 6 months after the surgery(P>0.05).There were no significant differences in the lunar diopters and cylinder diopters between the two groups before surgery,2 weeks,1 month,3 months and 6 months after surgery(P>0.05).The recurrence rate at 6 months after the surgery of the observation group was lower than that of the control group(P<0.05).Conclusion:Compared with R&R,BLR-rec can more effectively improve the strabismus degree of children with basic intermittent exotropia,and the recurrence rate at 6 months after the surgery is lower.Both surgical methods do not have adverse effects on the refractive status of the children.