A standardized eye examination might reveal in the future whether people are suffering from long Covid / post-Covid. A team of scientists was able to demonstrate a clear connection between the disease and certain changes to the blood vessels in the eye. Long after contracting COVID-19, between 1
During an eye examination, the diameter of small blood vessels and the dilation of vessels in response to light pulses can be measured. Both are altered in people with long Covid. Credit: Department of Nephrology / TUM
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.To date, the blood vessels studied were mainly large vessels. “However, 90 percent of endothelial cells in the body are in small and tiny vessels. What happens to these blood vessels in long Covid is barely known,” says the leader of the study, Prof.
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