In my practice, I strongly recommend against multifocal IOLs for all my cataract patients who are contemplating surgery.
Unlike a spectacle multifocal, where a patient can adjust their head position to select whichever part of the lens they want to use, with multifocal IOLs (intraocular lenses) the patient has no such choice. He/she must always look through all parts of the lens that optically fills his/her pupil, no matter what the head position. The same is pretty much true of soft multifocal contact lenses, but at least those can be removed.
IOLs are a one shot permanent fix, so you don't want something in your eye that cannot be easily removed unless it will give you one optic and one only. And explanting a plastic IOL you don't like is not a cake walk. It's far more difficult and complicated than explanting a human lens.
Worst of all, as an optometrist, none of my skills will help an eye that has been permanently blurred due to at least half of the available light being out of focus at ANY viewing distance.
Don't talk to me about how wonderfully grandma did with her multifocal IOLs. Sure, anything would be better than what she had pre-op. And sure, she doesn't need glasses post-op because they won't help!! The truth is, grandma wouldn't have minded wearing some reading glasses post op if they would just give her a crisp 20/20.
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