This section recommends that you be prepared to enter into an
aggressive analytical effort if you wish to come to grips with the
problem of nearsightedness. The approach must include the
development of a clear understanding of the strengths and
weaknesses of current eye care practices.
The effect that a negative lens has on the natural eye is
established by scientific judgments and experiments developed over
the last eighty years. The basic physics of refraction are
discussed as they concern the eye.
A quantitative understanding of the eye requires the
development of a basic equation for the normal eye's behavior.
The equation developed in this chapter can be solved on a personal
computer, and will accurately predict the results of all possible
tests that can be conducted to establish the normal eye's
The normal eye must continue to adjust and readjust its
long-term focus. If the normal eye did not have this dynamic
control characteristic (which has been experimentally
demonstrated) it would be impossible to account for the fact that
all eyes have a focal status that is almost identical to their
visual environment, offset by +1.5 diopters.
A number of students and pilots, who have worked with the
plus lens, detail their experience and judgment about the
long-term use of the lens. Currently practiced methods, and
objections to those methods are documented by eye doctors who have
extensive experience with the negative lens. Books and services
to assist you in returning your vision to 20/20 are also