Slide show: A look inside your eyes
Illustration of cornea, lens and vitreous cavity
Previous Next 5 of 7 Inside the front of your eye

Behind the scenes, other parts of your eye work to help you see:

  • Cornea. This is a protective dome of clear tissue at the front of your eye. It functions as a convex surface that helps focus light rays before they're fine-tuned by the lens.
  • Lens. The lens is a clear, elliptical structure that sits behind the iris. The curvature of your lens changes to sharpen your focus.
  • Vitreous cavity. The vitreous cavity extends from the back of the lens to the back of your eyeball, helping to maintain its shape. This area is filled with a clear, jellylike substance called the vitreous.
See more Multimedia March 17, 2017