Target refractions in bilateral monofocal pseudophakia: analysis of a mathematical model

Abstract

<jats:p>A recent paper proposes a model for suitable target refractions for monofocal pseudophakic monovision.  The purpose of this paper is to examine the mathematics that underpins the theory.  The expressions for the optimal target refractions presented before are shown formally to define the minimum of the mean binocular refractive error over a range of object distances.  The model is shown to be much more sensitive to errors in the distal target refraction than to errors in the proximal refraction.  It is also more sensitive to the choice of proximal limit of the object range than to the distal limit.  These considerations are important in selecting and evaluating suitable combinations of refractions in pseudophakic monovision. (S Afr Optom 2013 72(3) 103-109)</jats:p>