One of the reasons that many designers have so much trouble creating accessible web pages is because they can't even imagine what it's like to try and use the internet with limited or no vision. Designers who are serious about accessibility try to make up for this lack by using screen readers such as JAWS for help in testing their pages. Another tool that visually impaired people use to access websites is WebAnywhere. This is a tool that reads web pages aloud from any computer. By using that tool yourself on your own web pages you can better understand how to make your pages more accessible. Another good thing to read is Andrew Leibs’ article How Blind People Access Computers. This article explains how you can improve your pages so that they work better for the visually impaired. And that makes your site better for everyone.