Objective To investigate the interrelationship between age

axiallength

corneal surface morphology changes anel refractive error in children aged 5 to 14 years.Methods The clinical data of 121 children（242 eyes） attending the ophthalmology clinic of a hospital in Dalian from March 2017 to December 2019 were retrospectively analyzed and divided into 48 cases（96 eyes） in the group of 5-7 years old

43 cases（86 eyes） in the group of 8-10 years old

and 30 cases（60 eyes） in the group of 11-14 years old according to their age.We compared the differences in AL and corneal curvature among children of different ages and different refraction levels and ana-lyzed the correlation between refraction level and AL and corneal curvature in each age group.Results When comparing the corneal curvature of the eyes of the 3 groups of children

the differences were not statistically sig-nificant（P>0.05）;when comparing the refraction level of the eyes of the 3 groups of children

the 5-7 years old group> the 8-10 years old group> the 11-14 years old group

and the differences were statistically signifi-cant（P<0.05）;when comparing the AL of the eyes of the 3 groups of children

the 5-7 years old group0.05） when comparing the corneal curvature of the eyes of children with different refraction levels in differ-ent age groups;the differences were statistically significant（P<0.05） when comparing the AL of the eyes of children with different refraction levels in all age groups:myopia > orthopia > hyperopia;Pearson correlation a-nalysis showed that the refraction level of the eyes of children in all age groups were negatively correlated with AL（P<0.05）.Conclusion With the increasing age and eye axis growth

children’s refractive error gradually decreases and myopia depth increases.Clinical measures should be taken to slow down the growth of the eye axis in children to improve the status of refractive error.