The medial and lateral recti are primarily involved in converging and
diverging the eyes.  When accommodation (focussing at near) is
stimulated, the neurology is such that the stimulus to accommodation
also causes a stimulus to convergence and a stimulas to pupil
constriction; please note that the accommodative trigger causes all
three reactions. When the pupil constricts in response to light, there
is no associated trigger to convergence or accommodation.

If someone has a vergence problem, the visual system may respond by
increasing accommodation to gain the accommodative convergence or by
decreasing accommodation to gain divergence.  The inappropriate
accommodation may then cause blur.  VT, if successful in solving the
vergence problem, will eliminate the accommodation and associated blur,
but this is not relevant to treating myopia.  And the VT will work on
the vergence muscles, not on pupil size control.

Dr Judy

I must apologize,   I  thought your post was questioning the existance of
muscles that would respond to light on - light off.

From my understanding, vergence is principally governed by the medial recti
and the pupilary contractions by the pupillary sphincter. The association
between these is, both are controlled by the same  nerve ( third cranial? ).
Vision problems can be caused by these muscles not working together.  In
some of these cases, VT has been effective in  improving vision.

I agree its not a cure for myopia!

ispublished where?

Rev Jessie James wrote:> I assume he is refering to miosis and mydriasis
which involves the pupillary> sphincter ( circular ) and pupillary dilator
muscles ( radial ).  Not hardly> a new theory, as these muscles do play a
role in the vergence processes.

These musles are involved in light control, not vergence.Accommodation is
accompanied by both convergence and pupilconstriction, however, the
pupillary muscles are not involved invergernce.And even if they did, how
would exercising vergernce reverse myopia?dr Judy

These musles are involved in light control, not vergence.
Accommodation is accompanied by both convergence and pupil
constriction, however, the pupillary muscles are not involved in
vergernce.

And even if they did, how would exercising vergernce reverse myopia?

dr Judy

I assume he is refering to miosis and mydriasis which involves the pupillary
sphincter ( circular ) and pupillary dilator muscles ( radial ).  Not hardly
a new theory, as these muscles do play a role in the vergence processes.   I
have seen this type of exercise in several NVI programs.

zz... and the name of those muscles would be?
zzz... and evidence that they exist is published where?
zzzz... and evidence that they "increase and decrease vision sight" is
published where?

snip

... and the name of those muscles would be?
... and evidence that they exist is published where?
... and evidence that they "increase and decrease vision sight" is
published where?

I suppose if such a muscle existed your "theory" (actually your
speculation) could be tested.

Dr Judy

NEW THEORY: I found it... an exercise by theory that might fix vision

i found this theory... if it works i would like to have credit for it
for fixing the vision of everyone...

now, i am a philosopher not a medical person.... i do not want to try
this but i am sure ace or someone will or can try it for me....

you go in a bathroom... and you turn the light on... then you to the
light off...

this should exercise the muscles that increase and decrease vision
sight...

by exercising the muscle in theory you might be able to fix or make the
muscles so strong that they can or will be able to see 20/20 vision..

again, i am a theorist not a physician....