<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2873" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Tahoma size=2>    Hi Lou:    </FONT></DIV> <DIV><FONT face=Tahoma size=2>    I use trifocals with no gradual change from one to another.  Close work and reading on the bottom, arms length in the middle, and long distance on top.  For me the definite lens demarkation leaves no doubt which of the three lens I'm using.</FONT></DIV> <DIV><FONT face=Tahoma size=2>    Mike Kurta</FONT></DIV></BODY></HTML>