Hidden within the delicate nerve layers at the back of the human eye, researchers have found a quiet record of the heart's disorder — one written years before any crisis forces it into the open. A study of more than 90,000 patients by University College London and Moorfields Eye Hospital reveals that atrial fibrillation, the most common heart rhythm disorder in the UK, leaves measurable traces in retinal tissue detectable up to four years before clinical diagnosis. In a condition that often remains invisible until a stroke or collapse makes it undeniable, the eye — long called the window to th
Eye scans detect atrial fibrillation up to 4 years before diagnosis
Atrial fibrillation affects over 1.5 million people in the UK and substantially raises risk of stroke, heart failure, and death.