Abstract The relationship between choroidal and retinal microvascular changes has not yet been well described. and there were limited data on diagnostic ability of optical coherence tomography (OCT)-derived vascular parameters for determining diabetic retinopathy (DR) progression. We quantitatively analyzed OCT-derived vascular parameters at superficial (SCP) and deep retinal capillar... https://foldlyers.shop/product-category/stoppers/