Myopia is the highest incidence of eye disease in society, it threated people's eye health seriously. At present, many researchers measure the structural changes of retina which caused by the extension of eye axial due to the refractive error according to the optical coherence tomography(OCT). Besides, multifocal electroretinography(mf-ERG)was used to detect the function of retina in myopia. Global flash mf-ERG can evaluate the function of retina including both outer and inner retina. Some researchers focus on the correlation between structural and functional changes in myopia using OCT and mf-ERG. More researches are needed to clarify the structural and functional changes in myopia.