plus lenses / eyestrain from comoputer work?

My job currently reqires full time computer use, so I am viewing a computer
8+ hours a day. I have been experimenting with plus lenses +1.25D lenses
for a few months now when I use my computer. Without any lenses my vision
is good, I see typically 20/15 distance vision and can focus down to about
6".

During computer usage, I typically view the monitor from about 32" without
plus lenses. When I started using plus lenses, I could focus clearly
at about 25". I have attempted to keep the monitor just on the edge of
being out of focus. After about two months, I have noticed that Ican now
focus clearly on the screen at 29" using the same plus lenses.

I have also noticed that after long hours at the computer, my distance
vision would be worse than it was first thing in the morning. When wearing
plus lenses, I noticed that I do not have any change in my distance vision,
even after hours at the computer.

I have read quite a bit about Nearwork-Induced Transient Myopia (NITM) and
believe it explains why I see more clearly for distance after using plus
lenses at the computer.

What I don't fully understand is:
Why can I now see clearly at 29" using +1.25D lenes, when previously 24" was
the max?

Is it possible to train the eye to accomodate more. -OR- or am I simply
reducing residual effects of NITM caused by many years of computer work?

Dear Me,

Subject: Congratulations -- you are protecting your distant vision
the way it must be done.

When the eye has a negative refractive STATE of about -1/2 diopter,
you will see slight blur at distance.

As the eye "adapts" to a "distant environment" produced by
your long-term use of the preventive-plus, the refractive
STATE of the eye will change in a positive direction.


Me> What I don't fully understand is:
Why can I now see clearly at 29" using +1.25D lenes, when previously
24" was
the max?

Otis> This is a direct confirmation of the benifical effect of the
plus lens.

Otis> Here is the math:

But let me simplify:

1. If your refractive STATE were zero, then the point of "just blur"
would be 1 meter when looking through a +1 diopter lens.

2. If your refractive STATE were -1 diopter, the maximum
"just blur" distance would have been 0.5 meters.

Now:

1. When your "just blur" distance was 24 inches, through a
+1.25 diopter lens, your refractive STATE was about 0.6 diopters,
given that combination.

2. Your new refractive STATE changed, from 24 inches
to 29 inches through a +1.25 diopters lens was about
0.75 diopters.

3. Your refractive STATE changed by +0.15 diopters.

Commentary:

This is not a lot, and depends on your judgment. But it directly
confirms that your vision is improving as it should provided you
continue.

When you can read at 31 inches through a +1.25 diopter lens,
your refractive STATE will be zero -- which is considered ideal
for the normal eye.

Other scientists and physicists can confirm the math as I have
presented it.

(But I will confirm it in due course.)

Me> Is it possible to train the eye to accomodate more. -OR- or am I
simply
reducing residual effects of NITM caused by many years of computer
work?

Otis> You are reducing the effects of NITM, and confirming the
change in your refractive STATE by your own measurements.

Just my engineering second-opinion,

Otis


On Sep 30, 6:59 pm, "Me" <m...@sbcglobal.net> wrote:
> My job currently reqires full time computer use, so I am viewing a computer
> 8+ hours a day. I have been experimenting with plus lenses +1.25D lenses
> for a few months now when I use my computer. Without any lenses my vision
> is good, I see typically 20/15 distance vision and can focus down to about
> 6".
>
> During computer usage, I typically view the monitor from about 32" without
> plus lenses. When I started using plus lenses, I could focus clearly
> at about 25". I have attempted to keep the monitor just on the edge of
> being out of focus. After about two months, I have noticed that Ican now
> focus clearly on the screen at 29" using the same plus lenses.
>
> I have also noticed that after long hours at the computer, my distance
> vision would be worse than it was first thing in the morning. When wearing
> plus lenses, I noticed that I do not have any change in my distance vision,
> even after hours at the computer.
>
> I have read quite a bit about Nearwork-Induced Transient Myopia (NITM) and
> believe it explains why I see more clearly for distance after using plus
> lenses at the computer.
>
> What I don't fully understand is:
> Why can I now see clearly at 29" using +1.25D lenes, when previously 24" was
> the max?
>
> Is it possible to train the eye to accomodate more. -OR- or am I simply
> reducing residual effects of NITM caused by many years of computer work?

> What I don't fully understand is:
> Why can I now see clearly at 29" using +1.25D lenes, when previously 24"
> was the max?
>

Were the monitors the same? Were the monitor settings the same? Were the PC
settings the same?

"Me" <(E-Mail Removed)> wrote in message
news:7TVLi.1053$(E-Mail Removed)...
> My job currently reqires full time computer use, so I am viewing a
> computer 8+ hours a day. I have been experimenting with plus lenses
> +1.25D lenses for a few months now when I use my computer. Without any
> lenses my vision is good, I see typically 20/15 distance vision and can
> focus down to about 6".
>
> During computer usage, I typically view the monitor from about 32"
> without plus lenses. When I started using plus lenses, I could focus
> clearly at about 25". I have attempted to keep the monitor just on the
> edge of being out of focus. After about two months, I have noticed that
> Ican now focus clearly on the screen at 29" using the same plus lenses.
>
> I have also noticed that after long hours at the computer, my distance
> vision would be worse than it was first thing in the morning. When
> wearing plus lenses, I noticed that I do not have any change in my
> distance vision, even after hours at the computer.
>
> I have read quite a bit about Nearwork-Induced Transient Myopia (NITM) and
> believe it explains why I see more clearly for distance after using plus
> lenses at the computer.
>
> What I don't fully understand is:
> Why can I now see clearly at 29" using +1.25D lenes, when previously 24"
> was the max?
>
> Is it possible to train the eye to accomodate more. -OR- or am I simply
> reducing residual effects of NITM caused by many years of computer work?

Go to a an optometrist and get an Rx for your computer work. Don't mess
around with your eyes and your job just to save a measly $50 on an eye exam.

On Sep 30, 10:05 pm, "Mark A" <nob...@nowhere.com> wrote:
> "Me" <m...@sbcglobal.net> wrote in message
>
> news:7TVLi.1053$(E-Mail Removed)...
>
>
>

And you will receive wonderful progressives
with guarantee that for the 400$ that you paid you
will become faresighted and presbyopic in 3 years, and OD will have
new "regular."

visit him/her once a year.
then hi/she can make your progress of hyperopia faster.

On Sep 30, 9:37 pm, "otisbr...@pa.net" <otisbr...@pa.net> wrote:
> Dear Me,
>
> Subject: Congratulations -- you are protecting your distant vision
> the way it must be done.
>
> When the eye has a negative refractive STATE of about -1/2 diopter,
> you will see slight blur at distance.
>
> As the eye "adapts" to a "distant environment" produced by
> your long-term use of the preventive-plus, the refractive
> STATE of the eye will change in a positive direction.
>
> Me> What I don't fully understand is:
> Why can I now see clearly at 29" using +1.25D lenes, when previously
> 24" was
> the max?
>
> Otis> This is a direct confirmation of the benifical effect of the
> plus lens.
>
> Otis> Here is the math:
>
> But let me simplify:
>
> 1. If your refractive STATE were zero, then the point of "just blur"
> would be 1 meter when looking through a +1 diopter lens.
>
Theoretically yes.
But in reality eye adopts to +1 really fast
In one day it is no distant blur at all

If we presume that + lenses help miopic eye to shift state
then logically in eye with refractive state zero
they can induce hyperopia.

On Sep 30, 11:58 pm, lena102938 <db00q...@yahoo.com> wrote:
> >
> And you will receive wonderful progressives
> with guarantee that for the 400$ that you paid you
> will become faresighted and presbyopic in 3 years, and OD will have
> new "regular."
>
> visit him/her once a year.
> then hi/she can make your progress of hyperopia faster.


Ah yes, the newest conspiracy by ODs to corner the country's money
supply. THE JIG IS UP, Lena is on to your game !!!!!

Do you take drugs to get this paranoid or does it come naturally to
you ?

Dear Lena,

With all due respect, you are making an assumption that
is not correct.

You assume that the natural and NORMAL eye does
not have a positive refractive STATE.

The truth is this. Men who do no long-term close-work
have positive refractive STATES, running from zero to
+3 diopters, with the average about +1.8 diopters.
This is nature's design, and that is the way it is. See:

http://www.geocities.com/otisbrown17268/DynamicEye.html

For the situation that "Me" is describing, his refractive DISTANCE
is 29 inches. This makes his refractive STATE slightly negative.

When he he measures his "just blur" distance is 32 inches,
through a +1.25 diopter lens, his refractive STATE will
be zero diotpers. This is often refered to as "perfect" by
the traditional theory.

Best,

Otis



On Oct 1, 12:03 am, lena102938 <db00q...@yahoo.com> wrote:
> On Sep 30, 9:37 pm, "otisbr...@pa.net" <otisbr...@pa.net> wrote:
>
>
>
> > Dear Me,
>
> > Subject: Congratulations -- you are protecting your distant vision
> > the way it must be done.
>
> > When the eye has a negative refractive STATE of about -1/2 diopter,
> > you will see slight blur at distance.
>
> > As the eye "adapts" to a "distant environment" produced by
> > your long-term use of the preventive-plus, the refractive
> > STATE of the eye will change in a positive direction.
>
> > Me> What I don't fully understand is:
> > Why can I now see clearly at 29" using +1.25D lenes, when previously
> > 24" was
> > the max?
>
> > Otis> This is a direct confirmation of the benifical effect of the
> > plus lens.
>
> > Otis> Here is the math:
>
> > But let me simplify:
>
> > 1. If your refractive STATE were zero, then the point of "just blur"
> > would be 1 meter when looking through a +1 diopter lens.
>
> Theoretically yes.
> But in reality eye adopts to +1 really fast
> In one day it is no distant blur at all
>
> If we presume that + lenses help miopic eye to shift state
> then logically in eye with refractive state zero
> they can induce hyperopia.- Hide quoted text -
>
> - Show quoted text -

Yes lena, listen to Otis, he has logged many hours being the loony he
is today.

On Sep 30, 11:30 pm, "otisbr...@pa.net" <otisbr...@pa.net> wrote:
> Dear Lena,
>
> With all due respect, you are making an assumption that
> is not correct.
>
> You assume that the natural and NORMAL eye does
> not have a positive refractive STATE.
>
> The truth is this. Men who do no long-term close-work
> have positive refractive STATES, running from zero to
> +3 diopters, with the average about +1.8 diopters.
Otis,
I agree
explain me then why some people with refractive state +1.5
(aftorefractor)
have blured distance vision and need + glasses ,when the most of the
people with the same refractive state do not ?