A standardized eye examination might reveal in future whether people are suffering from long Covid syndrome or post-Covid. A team at the Technical University of Munich (TUM) was able to demonstrate a clear connection between the disease and certain changes to the blood vessels in the eye.
Between ten and 35 percent of those affected continue to experience symptoms such as respiratory problems or fatigue long after contracting Covid. So far, no physical features, or so-called biomarkers, are known that can be used to reliably diagnose long Covid.
One of the characteristics of Covid-19 is changes to blood vessels. This affects the endothelium, in particular, the inner wall of the blood vessel. As a result of the changes, organs in the body are not supplied with sufficient blood.