Theoretical model of an electrically tunable liquid-crystal-based contact lens

Milton, et al. [Opt. Express 22, 8035 (2014) [CrossRef] ] have constructed a model electronic liquid crystal contact lens for the correction of presbyopia. This paper constructs a theoretical model for this lens. Good agreement between theory and experimental data is achieved, although the indications are that the precise parameters of the lens differ slightly from those prescribed by the designers of the lens. We discuss the temperature dependence of the optical power, the sensitivity of the device to manufacturing process and the properties of such lenses containing a number of different known liquid crystals. The model can be used for engineering optimization of the existing prototype.