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Re: Question About "Add" Value

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Re: Question About "Add" Value

otisbrown@pa.net26 Jun 2006 01:10
Dear Rich,

Please disregard Allen's postings.

He thinks you are intellectually incompetent -- and
I would bet that you are not.

To much "paternalism" here.  AFTER you have
done these simple checkes YOURSELF -- you
can go back to your OD, and talk to him/her about
them.

Think for yourself.

Otis

++++++++

> > You might take you glasses off and check this.  If at 20 inches
> > the reading is blurry, then you will need some "plus" to read.
[quoted text clipped - 7 lines]
>
> Allen

A Lieberman26 Jun 2006 01:05
> You might take you glasses off and check this.  If at 20 inches
> the reading is blurry, then you will need some "plus" to read.

Dear Rich,

Please disregard Otis's postings. He is not in the medical profession and
not in any position to give medical advice like above.

Thank you!

Allen

otisbrown@pa.net26 Jun 2006 01:00
Dear Rich,

I will make this statement as an Engineer.

I do not know how old you are, but your refractive state is +0.5
diopters
as you state.  The "range" of accommodation (stop-to-stop) reduces
as we get older.  If you "range is 2.5 diopters (let us say), then
you can see clearly through a +0.5 diopter lens, down to
about a distance of about -2 diopters.  ( -2.0 diopters is
a distance of about 20 inches -- or normal reading distance.)

You might take you glasses off and check this.  If at 20 inches
the reading is blurry, then you will need some "plus" to read.

You can obtain a "simple" plus in the drug store off-the-shelf.

You might try a +1.25 diopter lens, and see if that meets
your "near" requirements.

And further, you might check your distance vision on my
site:

www.myopiafree.com

on Eye-Chart #2 and determine your visual acuity
with no plus.

These are easy checks, and do not require OD involvement.

Just "fun" things to do.

To further respond:

> Thank you for the reply. If I were to get bi-focal glasses for computer
> use, the prescription would be something like OD, OS 1.5, add 1.00 &
> that would yield a 2.5 diopter lower lens to read with?

Otis> If you Snellen is good, then you need to obtain a "weak" plus,
so that reading or the "computer" are comfortable for you.

Otis> Only YOU can check this -- if you wish.

Best,

Otis

> Thanks,
>
> Rich

Rich25 Jun 2006 21:08
>> Greetings,
>
[quoted text clipped - 5 lines]
>
>> Rich

Thank you for the reply. If I were to get bi-focal glasses for computer
use, the prescription would be something like OD, OS 1.5, add 1.00 &
that would yield a 2.5 diopter lower lens to read with?

Thanks,

Rich

otisbrown@pa.net25 Jun 2006 20:53
> Greetings,

Is it 0.5 + 2.00=2.5 diopters

Otis>  That is correct.

(I am not an OD -- but I think they will agree.)

> Rich

Rich25 Jun 2006 20:11
Greetings,

I am primarily Presbyopic & my prescription I OD & OS +0.5; add 2.00. I
have progressive lenses & my question is about the reading strength of
the lenses. Is it 0.5 + 2.00=2.5 diopters or just 2.00 diopters at the
bottom of the lens.
Thanks.

Rich

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