High Index 1.70 versus 1.74

Discussion in 'Optometry Archives' started by michel.yaz, Oct 23, 2007.

  1. michel.yaz

    michel.yaz Guest

    Hi There,

    I was wondering how is possible to recognize the lenses that you got
    is 1.70 or 1.74 and be sure that my optician havn't done any mistake
    or so ...

    I would appreciate any feedback.

    michel.yaz, Oct 23, 2007
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  2. michel.yaz

    Mark A Guest

    If you have a progressive, then there are etchings on the lens that would
    indicate the material, in addition to manufacturer/model and add power.
    Mark A, Oct 23, 2007
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