The primary role of the retina is to capture light and create sight, but adverse changes to the retina may also signal important alterations to the kidneys. Using photographs of the retina collected from 1820 patients with renal disease, Juan E. Grunwald, MD, from the Department of Ophthalmology at the University Of Pennsylvania School Of Medicine in Philadelphia, and colleagues found a significant association between the presence of retinopathy and chronic kidney disease as measured by lower estimated glomerular filtration rate (eGFR; P < .001). They reported the findings from this multicenter, cross-sectional study in an article published in the September issue of the Archives of Ophthalmology.To see more details visit, www.medscape.com