62mm is for distance, and 59mm is for reading.
On most web forms, they ask only for the distance PD...I always supply
both, in the "special instructions" field, whenever possible.
-- Chuck Knight
On Wed, Sep 9, 2009 at 2:23 PM,
[email protected]<[email protected]> wrote:
>
> I am trying to order my dad bi-focals but his pd on his prescription
> says 62/59 which one am i supposed to use? Thanks!
> >
>
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