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The cornea is a clear membrane made of collagen that covers the front of your eye. It protects the inside of the eye and focuses light that passed through it into the eye. If the cornea gets scratched, it can cause a corneal abrasion, and if it gets infected by a virus or bacteria, it can cause keratitis.
The white of the eye. The sclera gives the eye structural strength and protection for the inner elements of the eye. This is the outer clear covering over the center of the eye. The cornea acts like both a window and a lens. Light first enters the eye through the cornea. The shape of the cornea then acts as a lens to begin to bend or ârefractâ light toward a focal point at the back of the eye.