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Peer-Reviewed Publication
Clin J Am Soc Nephrol2026August 19, 2026Journal Article

The Eye as a Window to Cardio-Kidney-Metabolic Disease.

Jung Tak Park1,2, Yong Yu Tan3,4, Ye Eun Ko1,5, Sahil Thakur6,7,8, Tyler Hyungtaek Rim6,7,8, Young Su Joo1,2,5
1Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea.
2Yonsei Institute for Digital Health, Yonsei University, Seoul, Korea.
3University Hospital Limerick, Limerick, Ireland.
4University College Cork, Cork, Ireland.
5Division of Nephrology, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea.
6Mediwhale Inc, Seoul, South Korea.
7Singapore Eye Research Institute, Singapore.
8Ophthalmology & Visual Sciences Academic Clinical Programme, Duke NUS Medical School, Singapore.

Abstract

The Cardiovascular-Kidney-Metabolic (CKM) syndrome reframes cardiovascular, kidney, and metabolic disease as an integrated continuum, yet its management relies on reactive laboratory markers with substantial resource burdens. Retinal oculomics offers a non-invasive window into this continuum, grounded in structural and functional parallels between the retina and kidney. Their shared vulnerability…

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