Learn about glaucoma, a condition that affects the optic nerve and can cause blindness.

Version of this video with audio description: https://youtu.be/8zK2Vw4FdcI

Vea la versión de este video en español aquí: https://youtu.be/sRkxyzkYW4s

As part of the federal government’s National Institutes of Health (NIH), the National Eye Institute’s mission is to “eliminate vision loss and improve quality of life through vision research.” Learn more about NEI at https://nei.nih.gov
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Older version of this video: https://youtu.be/hASPt3hksbA