The Retinal Vasculature and Risk of Age-Related GFR Decline — The Renal Iohexol Clearance Survey

CRVE and CRAE, but not retinopathy, retinal microaneurysms, or hemorrhages, were associated with steeper mean mGFR, suggesting that microvascular changes may be one of the underlying mechanisms for age-related GFR loss in a general nondiabetic population.