
probably made some input errors during lesson #1. I will now show you
how to list your lens and fix errors without re-inputting the entire
prescription from the start. The LENS section of the manual describes
a number of lens database or "current lens" output commands. Let's try
a few. At the CMD level, issue the command:</p>

<p><strong>RTG ALL</strong></p>

<p>The Radius, Thickness and Glass materials associated with the
"current lens" will be displayed on the screen.</p>

<p><strong>RIN ALL</strong></p>