EC Ophthalmology

A 3-element minimal complexity AC/DC equivalent circuit is shown to represent the time course of progressive myopia during the student’s educational years, consisting of a Resistor R, Capacitor C, Battery Vo, and ON/OFF switch. This circuit is accurate over several decades of myopia progression, typically age 10 to age 30, accounting for the average accomodation diopter-hours (work load) from near point study, periodic increases in the strength of negative corrective lenses, individual subject’s time-constant response to the near work demands, and active myopia-control techniques, using positive (+) Add reading glasses during study.

Keywords: Stair Case Myopia; Nearwork; Resistor-Capacitor-Battery Circuit; Diopter-Hours, Progressive Myopia; Reading Glasses

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