15. Corneal Cells: Eye Renewal
The corneal epithelium—the outermost layer of your eye—renews itself about every week. This rapid turnover is essential for keeping the cornea clear and maintaining sharp vision.
If you get a minor scratch or injury to the surface of your eye, these cells swiftly regenerate, allowing for quick healing and protection against infection. This remarkable renewal helps preserve the delicate transparency needed for sight. Learn more at American Academy of Ophthalmology.