This completes the learning module on topography. You may now either quit or review this module again. The MENU button takes you to the beginning of this module. Clicking on the CD MENU will return you to the main menu of this CD-ROM. If you want to return to the screen before you started reviewing topography, click on To quit this CD-ROM at this point, please hold down the Alt key and press F4. Text and Photography by Gerald Lowther, O.D., Ph.D. Programming done by Bunny Raza, A.G.S.