Does a multifocal lens function like the natural lens of the eye?
Multifocal lenses can provide distance, intermediate and near vision, but they don’t function in the same way that our natural crystalline lens does before the onset of presbyopia.  The natural lens changes curvature to induce different powers depending on the distance at which we are looking.  A multifocal lens implant has concentric rings that have different powers which then places images from the different distances on the retina.