s the thickness of surface 8)<br>
    <strong>EOS</strong><br>
    (THE NEXT THREE COMMANDS SET UP TOLERANCE VARIABLES)<br>
    <strong>TVAR</strong><br>
    <strong>RD 2 .2</strong> (Radius of surface 2 changes by .2%)<br>
    <strong>CV_FR 3 4</strong> (Curvature of surface 3 changes by 4 fringes of power)<br>
    <strong>TH 2 .005</strong> (Thickness of surface 2 changes by 0.005 lens units)<br>
    <strong>EOSbr</strong><br>
    (THE NEXT THREE COMMANDS SET UP THE FOCUS CRITERIA)<br>
    <strong>FOCRIT<