If you require the range of vision, for distance, intermediate and near, the multifocals are perhaps the most reliable way of providing this range. Currently there are approximately 100 different designs and shapes of Multifocal IOLs and there is no consistency even in medical literature on how they are named.
These are variously described as bifocal, higher add IOL, trifocal IOL, extended depth of focus IOL (EDOF) etc. with each manufacturer claims their lenses are the best in the world.
