Introduction


This tutorial will familiarize you with some of the principles of the refraction of light by prisms and lenses. It should also help you to better understand image formation in the eye, and how its refractive errors are corrected with lenses.

Three types of refractive media are covered in this tutorial: prisms, spherical lenses, and cylindrical lenses. To review them all in the order presented, click on the Sample Information Page link below and follow the navigation links from there. You can also go directly to a particular topic by choosing its corresponding link at the bottom of this page.

 

 Sample Information Page

Click on any one of the links below to proceed directly to that topic.