Tetraflex accommodating intraocular lens
Not everyone achieves this level of near vision with the lens so people shouldn't expect to necessarily get quite as good a result, and should be prepared for the possibility for needing reading glasses at near.
There is no perfect lens, so its partly a matter of placing a bet on which might work out well, and I figured that it was better to bet on something that didn't require the accommodation to work in addition to other concerns regarding problems people have with the Crystalens, though those may be fewer in the newest versions.
In addition multifocal lenses reduce contrast sensitivity which is useful for night vision, while reports indicate the Symfony is at least as good as a monofocal lens.
That may be in part because as it notes: It seemed like a good bet the image quality for distance would be comparable, and perhaps even better, than a monofocal lens, or an accommodating lens. I had Symfony lenses implanted in both eyes the first week of December.
So, it looks like they are having their cake and eating it too. That is one of the accommodating intraocular lenses between this lens and for instance a bifocal IOL where vision may be worse at intermediate than it is at near or far.
The other thing the Symfony does is to correct for "chromatic aberration", an issue which is discussed in this industry publication which quotes one prominent surgeon noting: Although some results for the Crystalens look like it will similarly do well for intermediate while providing some chance at dating in port angeles wa near vision, some showed a lower chance of good near, e. I'll continue this in another post in a few minutes.