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COVID-19 increases the risk of blood clots forming in the eyes

Realizing that infection with the SARS-CoV-2 virus increases the risk of blood vessel blockage in other parts of the body, scientists conducted a study to see if the disease causes blood clots to form. clots in the veins or arteries of the retina. The retina is the nerve tissue at the back of the eye that receives light and images and sends them back to the brain.

COVID-19 increases the risk of blood clots forming in the eyes - 1

(Artwork: Medicalnewstoday)

New study has nearly 500,000 patients COVID-19 participation. Over the next 6 months, 65 of these patients developed retinal vein occlusion. While that number is low, it’s a 54% increase from the pre-COVID-19 rate for this complication.

Blood clots in the posterior retinal arteries with COVID-19 are 35% more common than without infection, but that difference may be due to randomness.

Blood clots are most common in patients with other medical conditions that increase the risk of blood vessel problems, such as diabetes, high blood pressure, and high cholesterol.

Notably, the risk of blood clots does not appear to be associated with severe infection with the SARS-CoV-2 virus. The study, the scientists note, could not prove that COVID-19 caused blood clotting in these patients’ eyes, so larger studies are still needed.

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