How the Eye Works

How vision changes with age

How Vision Changes With Age

Our eyes are always changing. Take a closer look at the lifecycle of the eye with this interactive tool.

Anatomy of the eye

Anatomy of the Eye

Vision is a complex process that involves many intricate parts.

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Understanding the Functions of the Eye

For an organ that’s only about an inch in diameter, the eye is incredibly complex. Many intricate parts work together to allow us to see the images that surround us every day.

The process of vision always begins with light. The eye collects light from the surrounding environment, regulates its intensity, focuses it through lenses to form an image, converts the image into a set of electrical signals, and transmits these signals to the brain through complex neural pathways.1

Find an
Eye Care Professional

Are you looking for an
Ophthalmologist Ophthalmologist:
Medical or osteopathic doctors (M.D.s or D.O.s) diagnose and treat eye diseases, prescribe medications and corrective lenses, and perform eye surgery.
or Optometrist? Optometrist:
Eye doctors (O.D.s) examine eyes for vision and health problems. They may prescribe corrective lenses, and in some states, they can prescribe medications and perform some eye care procedures.

How the eye sees

How the Eye Sees

Learn how the human eye functions much like a camera.