Resumen:
Myopia is the most prevalent refractive error and is currently
considered as a public health problem because its
prevalence is continuously increasing. Additionally, there
is a relation between the progression of myopia and the
associated risk of developing myopic maculopathy, retinal
detachment and other ocular afflictions,1 with this risk
increasing for higher levels of myopia.
Soft bifocal contact lenses (CL) have been found to slow
the progression of myopia in children.2 It was suggested
that such lenses reduce the rate of myopia progression in
children because of the relative myopic defocus that they
induce in the peripheral retina and/or because they reduce
accommodative lags.3
Related to these effects, a new CL design has been
launched into the market and is focussed on myopia control.
The knowledge of the optical power profile of this
design could offer important information about the effective
peripheral relative myopic defocus and the potential
visual performance of the wearers.
Therefore, in this letter the power profile of this CL is
analysed. At the same time, the power profile of a similar
design of a bifocal CL for presbyopia correction is addressed. This analy...