Ocular Findings and Viral Persistence in Ocular Fluids in COVID-19 Survivors

Background: Some people who have had COVID-19 experience changes in the eye. Sometimes these changes are subtle and may not affect vision. Researchers want to learn how many people experience these eye changes and where in the eye they occur to better understand the outcomes of COVID-19 and its treatments. Objective: To examine possible changes in the eye that might have occurred as a result of COVID-19. Eligibility: Adults age 18 and older who were diagnosed with COVID-19 and recovered. Design: Participants will be screened with a medical history and physical exam. They will have blood tests. Participants will have an eye exam. Their pupils will be dilated with eye drops. Eye pressure and movements will be measured. Participants will have optical coherence tomography. Pictures will be taken of the retina and the inside of the eyes. Participants may have fluorescein angiography and indocyanine green angiography. They will be given a dye through an intravenous line. The dye will travel up to the blood vessels in their eyes. Pictures will be taken of the dye as it flows through the blood vessels. Participants may have electroretinography to test the retina. They will sit in the dark with their eyes patched for 30 minutes. Then they will watch flashing lights while wearing contact lenses that sense signals from the retina. Participants may have adaptive optics-assisted imaging. They will look at a specific location while images are taken of the retina. During the study, participants will have blood drawn through a needle in their arm. Fluid or tissue from the eye may be obtained if participants have a medically needed procedure. Participation will last for 12 months.