Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 50 - Test Your Understanding - Level 3 - Synthesis/Evaluation - Page 1136: 10


The lens in the human eye is quickly flexible, allowing it to create a wide variety of angular bends that give us the ability to see images at a wide range of distances.

Work Step by Step

A single-lens eye’s resolving power is limited to the angles that can be produced by the lens and the speed at which it does so. The lens of the human eye can change dramatically, giving us the ability to clearly see objects both up close and far away. It also helps us perceive depth better than many other animals, an adaptation seen in primates in general.
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