Corrective design by axial length for congenital strabismus
Objective To compare the postoperative effect of congenital esotropia and congenital exotropia in rou-tine surgery design and corrective design by axial length.Methods A retrospective study was conducted on 254 children with congenital strabismus who underwent strabismus correction surgery in Children's Hospital of Nanjing Medical Univer-sity from February 2017 to June 2022.They were divided into two groups:group A(127 cases)received surgical amount designed by deviating degree,while group B(127 cases)received surgical amount corrected according to axial length.The surgical effects of both groups were compared at 1 week,3 months,and 6 months after the surgery.Results(1)Regard-ing the comparison of the postoperative effects between the two groups,at 1 week after the surgery,the rates for group A and B were 84.3%and 85.8%,respectively(P>0.05).At 3 and 6 months after the surgery,the rates for group B(78.0%and 76.9%,respectively)were higher than those for group A(66.9%and 63.5%,respectively)(P<0.05).(2)When the axial length was less than 22 mm,the rates for groups A and B at 1 week after the surgery were 84.0%and 85.2%,respec-tively.At 3 months after the surgery,they were 64.9%and 78.4%,respectively.At 6 months after the surgery,they were 63.8%and 77.3%,respectively.When the axial length was between 22 mm and 26mm,the rates for groups A and B at 1 week after the surgery were 84.8%and 87.2%,respectively.At 3 months after the surgery,they were 72.7%and 76.9%,respectively.At 6 months after the surgery,they were 60.6%and 69.2%,respectively.When the ocular axial length was less than 22 mm,there was no statistically significant difference between the two groups at 1 week after the surgery(P>0.05),while there was a statistically significant difference at 3 and 6 months after the surgery(P<0.05).When the axial length was between 22 mm and 26 mm,there was no statistically significant difference between two groups(P>0.05).(3)Regarding the comparison of surgical satisfaction between the two groups,the satisfaction rate for group B(83.5%)was higher than that for group A(69.3%),and the difference was statistically significant(P<0.05).Conclusions Correction of routine surgery design based on axial length,under the exclusion of other influencing factors,is helpful in improving the postoperative effect and surgical satisfaction of congenital strabismus.This method can provide reference for the design of strabismus surgery.