Ever wonder how your eyes work? Watch this video to learn how you're able to see the world around you.
Did You Know?
On average, you blink about 15 to 20 times every minute. That's up to 28,800 times a day!
COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC: https://www.coronavirus.gov
Get the latest research information from NIH: https://www.nih.gov/coronavirus
NIH staff guidance on coronavirus (NIH Only)