Set Your Location to See Relevant Information

Setting your location helps us to show you nearby providers and locations based on your healthcare needs.


See COVID-19 vaccine information here.

Normal Vision

Illustration demonstrating normal vision
Click Image to Enlarge

What is normal vision?

To understand how certain problems can affect your child's vision, it’s important to know how normal vision happens. For children with normal vision, the following things happen in this order:

  1. Light enters the eye through the cornea. This is the clear, dome-shaped surface that covers the front of the eye.

  2. From the cornea, the light passes through the pupil. The iris, or the colored part of your eye, controls the amount of light passing through.

  3. From there, it then hits the lens. This is the clear structure inside the eye that focuses light rays onto the retina.

  4. Next, light passes through the vitreous humor. This is the clear, jelly-like substance that fills the center of the eye. It helps to keep the eye round in shape.

  5. Finally, the light reaches the retina. This is the light-sensitive nerve layer that lines the back of the eye.

  6. The optic nerve is then responsible for carrying the signals to the visual cortex of the brain. The visual cortex turns the signals into images (for example, our vision).



© 2000-2021 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

Our website uses cookies

This website uses cookies to give you the very best experience. Your continued use of this site is considered permission by you to use cookies in this manner. Please review our Privacy Policy and Terms of Use for more information about the data we collect and the types of cookies we use. Please note, if you link off our website to a 3rd party site of any kind, that website has its own terms and conditions.