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10 April, 12:39

Your client's PD is 62. The frame eyesize is 48, and the DBL is 18. When you block this lens, how much will the decentration per lens be?

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  1. 10 April, 15:09
    0
    2 mm

    Step-by-step explanation:

    Remember that the formula is: (DBC-PD) : 2

    and

    DBC = DBL + frame eye size.

    The correct answer is: 2 mm
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