INFLECTION PLOT



The point of greatest change 
along a given meridian is 
plotted when this choice is made.  

The Up and Down arrow keys will 
change the dioptric value for 
this step from the preset 5.00 D. 
value 0.20 D. each time they are 
hit.  The PgUp and PgDn keys will change it 1.00 D. at a time.