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Researchers have found a link between COVID-19 and eye problems.

A study that appears in the medical journal Radiology reveals 7 percent of COVID-19 patients have been found to suffer from irregularities at the backs of their eyes, including blood vessel blockages and damaged fiber nerves.

While they’ve found nothing to explain why this occurs, researchers suspect the damage is caused by blood clotting and disruption of an enzyme that protects the eyes from being damaged.

“We showed that a few patients with severe COVID-19 from the French COVID-19 cohort had one or several nodules of the posterior pole of the globe,” said study lead author Augustin Lecler, M.D., Ph.D., associate professor at the University of Paris and neuroradiologist from the Department of Neuroradiology at the Foundation Adolphe de Rothschild Hospital in Paris in a news release. “This is the first time these findings have been described using MRI.”

That would explain why patients complain of pressure in their eyes when they’re placed face-down to be put on ventilators, the study suggests.

But the jury’s still out when it comes to COVID’s long-term effects on vision.

Researchers said that more research needs to be done but suggest that doctors consider scanning their patients dealing with COVID-19 for ocular issues.

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Katherine Viloria is Beasley Media Group's Fort Myers Digital Content Manager. She loves to write, snap photos, and watch Grey's Anatomy. Connect with her on Instagram @alittlethisalittlekat