BC and Diameter

Discussion in 'Optometry Archives' started by James Smith, Oct 4, 2004.

  1. James Smith

    James Smith Guest

    Which way round does BC work?

    If two lenses are both DIA 14, one is BC 8.4 and one BC 8.6 - which will be
    the tigher fitting lens?
     
    James Smith, Oct 4, 2004
    #1
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  2. James Smith

    Dom Guest

    All other things being equal, 8.4 will fit tighter. But there are many
    other factors that determine lens fitting.

    Dom
     
    Dom, Oct 4, 2004
    #2
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