Objective Critical period for binocular visual development is age 0-3.The paper compares physical development and nutritional status of children with refractive errors and those with normal refractive errors,to explore relationship between refractive errors and nutritional status,and provide appropriate nutritional guidance for children with refractive errors to promote their normal visual development.Methods The paper chose children with refractive examination in Child Health Department of Changzhou City Maternal and Child Health Hospital from March 2021 to March 2023,and divided them into normal group with normal refractive index,and abnormal group with abnormal refractive index.Refractive error was detected with Suresight handheld automatic refractometer,height and weight was measured with unified standard,blood trace elements were detected with atomic absorption method.Results Weight index of age 2.5 group with abnormal refractive index was lower than normal refractive index group,with significant difference(P<0.05),there was no difference in height between two groups(P>0.05).There was no significant difference in weight and height between normal and abnormal refractive groups in the other groups(P>0.05).Trace element calcium in age 2.5 group with abnormal refractive index was significantly lower than normal refractive index group(P<0.05).Trace element magnesium in the group with abnormal refractive error was lower than normal group,difference was statistically significant(P<0.05).There was no significant difference in values of other trace elements between the age group with abnormal refractive error and normal refractive error,(P>0.05).Trace element zinc was generally lower than normal value in both groups,there was no significant difference between abnormal group and normal group(P>0.05).Conclusion Children with refractive errors have lighter weight and lower levels of blood trace elements of calcium and magnesium of age 2.5 group than those with normal refractive errors,with significant difference.
维普
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