From the conclusion:
"In keeping with the previously reported associations of myopia with
esophoria, poor accommodation function and high AC/A ratios, these
conditions increase the amount of myopia produced under intensive near
viewing conditions but do not lead to myopia during mainly distance
viewing. This model provides quantitative validation of the hypothesis
that the epidemiological association between myopia and increased
nearwork may be caused by a disturbance of normal emmetropization by
steady state errors of accommodation. "

Flitcroft states that poor accommodation function may lead to
increased myopia with near work.  He does not mention use of minus
lenses to correct myopia as a factor, nor does he say anything about
"stair case myopia", nor does his paper support Soon's Graph.

Poor accommodation function and steady state errors exist with or
without myopia and minus lenses.  Wearing plus at near will not
improve poor accommodation, nor will wearing minus make good function
turn into poor function.

And his paper is speculative, not measured.  Do you have any actual
measured evidence to support Soon's Graph?

Judy

Subject: The Scientific Basis of Soon’s Graph.

Re:  Ophthalmologist D. I. Flitcroft’s Analytic Paper of the
Fundamental Eye's Dynamic Behavior

Soon’s graphs are simplification and clarification of developing
scientific and medical thinking about the behavior of the fundamental
eye.

Thus, while denied by the majority-opinion optometrists, they are
analyzed ophthalmologists.

For the record, here is the paper.  Since many of you don’t like the
concept of prevention, and to respect Dr. D. I. Flitcroft, let us just
call this the professional (preventive) second-opinion, and thus avoid
the endless personal attacks that have no place in science.

Perhaps this paper is on the “Web”.  Maybe some of you could find it?

VISION RESEARCH

PERGAMON

Vision Research 38 (1998) 2869 – 2879

A Model of the contribution of oculomotor and optical factors to
emmetropization and myopia.

D. I. Flitcroft

INSTITUTE OF OPHTHALMOLOGY
University College Dublin
60 Eccles Street
Dublin 7, Ireland

ABSTRACT:

The purpose of this work was to investigate quantitatively the
interactions between accommodation, vergence and a mechanism of
emmetropization driven by optical blur within the retinal image with a
view to developing a model that provides and explanation of both
normal emmetropization and near-work associated myopia…..

I would recommend that anyone who wishes to challenge Soon’s graph
(which is an extension of this paper, obtain the paper and READ IT.

Enjoy,

Otis