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Medical Forum / General / Vision / December 2005

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Myopia progression

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flitz - 26 Dec 2005 18:17 GMT
I have 2 stories Otis Brown and followers may wish to speculate on.

1.   A 30 something male with -3.50 prescription enters graduate school and
exits with -7.00 prescription.
     Later got laser correction.
2.   60+ male with stable prescription of -4.00 for 15 yrs or so has a heart
transplant and now sees 20/20 with no distance glasses.

Others who consider themselves "true scientists or doctors" are welcome to
respond also.
William Stacy - 26 Dec 2005 18:54 GMT
> I have 2 stories Otis Brown and followers may wish to speculate on.
>
> 1.   A 30 something male with -3.50 prescription enters graduate school and
> exits with -7.00 prescription.

I'm *so* not one of those followers, but you need a little more info on
your "cases".  Like was the -3.50 a full distance Rx giving 20/20 on
entry? Was it maybe a contact lens Rx? Was the -7.00 done with a
cycloplegic?  Was it CLRx or SRx?  Having said that, I think it is
plausable that the constant near demands he endured during grad school
could increase his myopia that much.

>       Later got laser correction.
> 2.   60+ male with stable prescription of -4.00 for 15 yrs or so has a heart
> transplant and now sees 20/20 with no distance glasses.

This one definitely has some info missing.  It is too outrageous and
unlikely an outcome to speculate with that little bit of info.  Probably
another case of a hearsay tale growing/morphing in the retelling.

> Others who consider themselves "true scientists or doctors" are welcome to
> respond also.

Please expand on the sources of your info, and try to get more info on
them.

w.stacy, o.d.
acemanvx@yahoo.com - 26 Dec 2005 19:07 GMT
1. He overused the minus lense and ruined his eyes badly. I bet he was
using his -3.5 glasses even for reading when he can see perfect for
near. I dont understand why some people wear glasses even for reading
when there absolutely is NOOOOOO need to! I bet he had a good deal of
pseudomyopia as well as axial myopia. If his lasik corrected more than
his cycoplegic refraction, he will be back in glasses full time once
presbyopia starts creeping.

2. This makes no sense to me, the two arent even related.
Mike Tyner - 27 Dec 2005 00:32 GMT
> 1. He overused the minus lense and ruined his eyes badly.

Would you care to tell us which anatomical structure was "ruined?"

> 2. This makes no sense to me, the two arent even related.

Just because it doesn't "make sense," how does that mean it never happened?
Many doctors will tell you they've seen huge hyperopic shifts after coma,
anesthesia, and major trauma.

-MT
acemanvx@yahoo.com - 27 Dec 2005 13:52 GMT
"Would you care to tell us which anatomical structure was "ruined?"

axial myopia due to close work

"Just because it doesn't "make sense," how does that mean it never
happened?
Many doctors will tell you they've seen huge hyperopic shifts after
coma,
anesthesia, and major trauma."

Can science explain how this is the case? I could see it something to
do with removing pseudomyopia but how does it physically affect axial
myopia?
Mike Tyner - 27 Dec 2005 14:33 GMT
> Can science explain how this is the case? I could see it something to
> do with removing pseudomyopia but how does it physically affect axial
> myopia?

I don't know. I'm only sure it happens. My guess is that it accellerates a
natural hyperopic shift that occurs in many after age 30.

-MT
CatmanX - 27 Dec 2005 23:59 GMT
> "Would you care to tell us which anatomical structure was "ruined?"
>
> axial myopia due to close work

Funny, I never knew axial myopia was a structure. Given most myopes I
know don't have their eyes falling out, I would hardly call them
ruined.

> "Just because it doesn't "make sense," how does that mean it never
> happened?
[quoted text clipped - 5 lines]
> do with removing pseudomyopia but how does it physically affect axial
> myopia?

That's the point dickhead, pseudomyopia is not axial myopia.  Ciliary
tone has been lost.

dr grant
Ann - 29 Dec 2005 12:17 GMT
>1. He overused the minus lense and ruined his eyes badly. I bet he was
>using his -3.5 glasses even for reading when he can see perfect for
>near. I dont understand why some people wear glasses even for reading
>when there absolutely is NOOOOOO need to! I

Because we don't just sit and read and do nothing else.  We work and
need to move our gaze from paper to computer screen to the people we
are talking to.  Some of us read on the bus and need to keep an eye
out as to where we are on our journey.  Your suggestion is simply
impractical.

I also think that giving one extreme example does nothing for the
discussion.  One swallow doesn't make a summer.

Ann
CatmanX - 27 Dec 2005 00:59 GMT
For starters, you need to post prior results as William states. Do we
take your word that this is true? Of course both can happen. The grad
school guy could have easily deteriorated over 2-3 years. He could also
have been -7.00 on entry and too stupid to notice the blur until he
failed his driving test. I see that one all the time. The other guy
could have been over corrected, poorly tested afterwards, given second
sight by god, whatever. You have not shown evidence of anything.

dr grant
otisbrown@pa.net - 27 Dec 2005 17:56 GMT
Dear Flitz,

My interests are in the PREVENTION
of nearsightedness -- BEFORE you
begin wearing a strong minus lens.

Since perhaps 90 percent of the development
of a negative refractive state for the natural
eye occurrs between the age of
5 to 25, it follows that prevention must start
at that point -- if the individual has the
interest and motivation to do the
work "correctly", and if necessary,
under his own control. See:

www.chinamyopia.org

and

www.myopiafree.com

for details.

Your case #1.

The 30 somthing male most likely
got down-to -3.5 dioters by wearing
an over-prescribed minus in high school
and college.  But "picking up" an
additional -3.5 diopters is completely
consistent with the eye placed in
both a "confined" enviroment, "enhanced"
by a stronger minus lens.

Case #2.  My discussion only concerns
the young eye.  Therefore no comment.

Best,

Otis
p.clarkii@gmail.com - 28 Dec 2005 03:35 GMT
> Dear Flitz,
>
[quoted text clipped - 7 lines]
> 5 to 25, it follows that prevention must start
> at that point --

so far your reasoning seems fine.  but where you go off track is you
think that you know what a good prevention scheme actually is.  the
truth is no effective prevention scheme has ever been found.  bifocals,
contacts, plus lenses, undercorrection, overcorrection, NONE of those
things work.  time to try something else.  time to think of plan B.
why can't you accept the data and join the hunt for a REAL prevention
scheme instead of clinging to what has already been disproven.

do you have fear of change?  do you fear getting left behind while the
world moves on?

> if the individual has the
> interest and motivation to do the
> work "correctly",

sorry, but working hard and "correctly" at something that is totally
ineffective is a task for fools.
flitz - 28 Dec 2005 16:34 GMT
Ok. a little more detail then, and think a little harder about this, this
first round was rather disappointing.  Or stop letting your techs do your
refractions and taking your case histories.
Story 1.
No glasses until after high school.  -1.00 both eyes, gradually accepts more
minus over time.
Of course, cyclo'd before Lasik.  Stable refraction of monovision -1.50 and
plano last 8 years. Subject now 50yo.  Uses reading glasses occasionally for
comfort when reading long periods of time.

Story 2.
Presbyopic male without evidence of pathology as could be detected by FA,
OCT or fundus exam. Prior to surgery,  20/20 with -4.00 and +2.00 add, then
5 months after transplant reports for an exam because he noticed that after
surgery, he didn't need his glasses anymore, then as he became mobile,
discovered his glasses made is vision blurry for driving.  Now. plano with
+2 add.

"Enjoy glorious speculation between all or nothing."

> I have 2 stories Otis Brown and followers may wish to speculate on.
>
[quoted text clipped - 6 lines]
> Others who consider themselves "true scientists or doctors" are welcome to
> respond also.
CatmanX - 28 Dec 2005 21:06 GMT
Is there a point to this?

I can make up stories too. Once upon a time.......

dr grant
 
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