Multifocal and accommodating lenses in combination with cataract operations
Multifocal lenses do have mild adverse events, but these are not regarded as deciding factors. A well-informed patient can weigh these up against the disadvantage of monofocal lenses which will always require supplementary (reading) glasses. This treatment does comply with established medical science and medical practice.
This is not the case for accommodating lenses, because these involve more risks (blurred vision).