The ADD is the magnification used *in* the area dedicated to reading.
(I know...I like being precise)
Having said that, I would expect that a .25 diopter difference (.75 vs 1.0)
is likely not going to be noticable.
-- Chuck Knight
On Tue, Mar 3, 2009 at 7:33 PM, les_b <[email protected]> wrote:
>
> Have a progressive prescription with an ADD of +075 [RE pe +075
> x032 ; LE -100 +075 x030]
>
> Zenni and others only provide progressives with 1.0 and above.
>
> What to do? Is the ADD magnification? I don't want to increase the
> reading strength.
>
> One source told me the ADD was the area of the lens devoted to
> reading. Correct?
>
> >
>
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