Preliminary experimental design using reading glasses at the U.S. Naval Academy at Annapolis are discussed. The conclusion
is that (+) add lenses, used as reading glasses during study, can prevent the development of myopia for college students in
pilot training.
Cheng et al. (2011, 2014) and Gwiazda et al. and Hyman
et al. (2003, 2005,2014) present a comprehensive
listing of modern studies to date in terms of using (+) Add
reading glasses to prevent or slow the progression of myopia.
Brown & Berger (1979), Brown & Young (1981), Schaeffel &
Howland (1988), Medina & Fariza (1993), and Greene, Brown,
Medina & Graupner (1996) use first order control theory
to predict myopia development as a function of time.
Thorn, Gwiazda & Held (2005) present a mathematical model
of myopia development using the Gompertz function.
Hung & Ciuffreda (2007) develop IRDT, incremental retinal
defocus, to explain myopia during the growth phase. Medina
et al. (2015, 2016) and Greene & Medina (2015, 2016) use control theory to explain myopia development,
solved with digital and analog computer techniques to
evaluate first-order equations. Viikari (2011) and Goldschmidt
(2003) present comprehensive reviews of juvenile myopia,
and various techniques used to control this myopia progression.
Theories are many and varied, in terms of the causes of myopia. Figure 1a and 1b below show the nearwork demand
problem, typical of college students, and the proposed
optical solution to the problem, namely, custom reading glasses.
Work done during the past twenty years has demonstrated
that the accommodation system is a superb example of a
physiological control system. It is a complex, sophisticated,
and accurate system. We can logically expect that the normal
eye will show equal competence in the design of its long-term
control system.
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