0 0.000000E+00
  SPTWT2, 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00
</pre>

<p>When you type the "EOS" command at the end of lens input, the lens
prescription becomes the "current lens". If you exited now, a copy of
this "current lens" is stored in the file LENSTEXT.DAT in the CURLENS
directory which sits just beneath the PRG directory. When you run the
program again, this file is read in and automatically becomes the
"current lens". Before you exit, you should save your work in the le