Vascular morphology and function changes exist in degenerative retinopathy,which have an important influence on the development and prognosis of the disease.The literature has been reported that retinal vascular structure and function change can be found early by using the retinal oximeter,color Doppler flow imaging,ocular pulse amplitude and so on,as well as exploring the primary and secondary factors affecting the development of retinal blood vessels.This article reviews the vascular behavior characteristics in degenerative retinopathy and their influence factors.