Illustration copyright 2000 by Nucleus
Communications, Inc. All rights reserved.
The lens is located behind the iris and is normally clear. Light
passes through the pupil, the dark area in the center 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).
How this information was developed to help you make better health decisions.