Effects of refractive errors on macular blood flow and retinal thickness in school-age children assessed by OCTA

AIM: To quantitatively analyze the macular area blood perfusion and retinal thickness of school-age children in each ametropia group by using OCT angiography technology, in order to evaluate the effect of the changes of refractive state on the macular area blood perfusion and retinal thickness during the growth and development of school-age children.METHODS: In this study, 174 eyes were randomly selected from school-age children who were treated in the ophthalmic clinic from July 2018 to March 2019. The superficial retinal capillary of vessel density(SCPVD), deep retinal capillary of vessel density(DCPVD), central retinal thickness(CRT)and average retinal thickness(ART)were quantitatively analyzed using by OCT angiography technology. Additionally, the correlation between blood vessel density in macular area and retinal thickness was analyzed.RESULTS: After quantitatively analysis, compared with emmetropia group, the SCPVD value of the high myopia group was decreased(P