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    OptiBoard Apprentice wilddevil's Avatar
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    Mar 2009
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    Romania
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    Optometrist
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    Confused how to resize a precal/mets ?

    I always want when i order progressive lenses (especially plus) to give them a paper sheet with all the specific details. But sometimes i receive the lenses and i cannot insert in frames because they give me a smaller lens (-1 or 2 mm).I want to ask haw to give them measurements with an addition of 2 mm in every direction, but I came up with a problem:
    exemple:
    lens width:53mm
    lens height:35mm
    Bridge width:20mm
    DP OD:33mm
    DP OS:33mm
    Fitting height:23mm
    To receive a bigger lens add +4mm on the lens width, +4 on the lens height, and +2 to the Fitting height
    MY question is that: do i modify the bridge or dp?
    Thank you!
    Last edited by wilddevil; 10-08-2013 at 10:38 AM.

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