Search Knowledgebase

Lens

Picture of the lens iin the eye

Illustration copyright 2000 by Nucleus Communications, Inc. All rights reserved. http://www.nucleusinc.com

The lens is located behind the iris and is normally clear. Light passes through the pupil, the dark area in the centre of the iris, to the lens. Small muscles attached to the lens can change its shape. Tightening or relaxing these muscles causes the lens to change shape, allowing the eyes to focus on near or far objects (accommodation).

By Healthwise Staff
Primary Medical Reviewer Adam Husney, MD, MD - Family Medicine
Primary Medical Reviewer Donald Sproule, MD, CM, CCFP, FCFP - Family Medicine
Specialist Medical Reviewer Carol L. Karp, MD - Ophthalmology
Last Revised October 25, 2011

Last Revised: October 25, 2011

Author: Healthwise Staff

Medical Review: Adam Husney, MD, MD - Family Medicine & Donald Sproule, MD, CM, CCFP, FCFP - Family Medicine & Carol L. Karp, MD - Ophthalmology

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

To learn more visit Healthwise.org

© 1995-2013 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.