I heard that are very good, practically no glare or other dysphotopsias. Why are not used that much as AMO, Acryosf and other lenses?
If you do an internet search on "about-eyes Nanoflex" there is an article about the new Star Nanoflex accomodating IOL compared to Crystalens and multifocals.
There is a good FAQ section in that article, that includes:
FAQ #1: “Why haven’t I heard of this lens before?”
Staar is a relatively small company compared to Alcon, AMO, and B&L (the big three IOL makers in the USA). As such, Staar simply doesn’t have the marketing budget to compete. Hate to break it to you, but doctors are just as likely to be swayed by marketing as anyone else. Whether it’s laundry detergent, a car, or an intraocular lens placed at the time of cataract surgery, we are all influenced by familiarity with a brand. Indeed, marketing studies have supported that familiarity breeds trust so the most heavily marketed brand tends to be trusted for that reason alone.
FAQ #2: “Why aren’t more surgeons using this lens if it’s so great?”
I can’t say for certain why the Staar nanoFLEX® IOL is not embraced by more surgeons, but I have a few thoughts on the subject:
It’s a plate haptic IOL. When plate haptic IOLs first came on the scene they were made of silicon which is a slippery, springy material. They could not be easily folded with forceps so required injectors to get them through a small incision during cataract surgery. As these IOLs left the injector they did so with significant speed and force. I’ve even seen a video of one that jumped out of the injector through the capsular bag and into the back of the eye! The Staar nanoFLEX® IOL, however, is not made of silicon. It’s made of Collamer®, which is a less “springy” material. I’ve found injecting it to be controlled and stress-free. Many surgeons, however, may simply not be willing to try another plate haptic IOL after their initial experience with silicon plate haptic IOLs.
The force of inertia (or habit). Everyone, surgeons included, tends to prefer what they are familiar with. Surgeons who have been using acrylic lenses (the most common type) may just not want to be bothered by trying out a different lens material which requires becoming familiar with a new lens injector, surgical technique, etc.
Not all surgeons are even aware of the nanoFLEX® IOL due to the limited marketing done by Staar. See FAQ #1.
Unfortunately, everyone (including the surgeons) get influenced by the sales pitches of the big companies.
At the time I got the Symfony lens for my right eye (having been influenced by all the advertised advantages without any mention of the potential night vision issues), if I had chosen to get a monofocal lens, it may have been the Nanaflex IOL. That would have been based on the 2015 article, "My Firsthand Experience with the nanoFLEX® Collamer® IOL," by Dr. Alan Carlson, which makes a strong recommendation for this lens. However, it will be wise to do a more thorough investigation about the lens before one decides to find a surgeon who uses it.
The Staar Nanoflex IOL looks like a good alternative if you have no significant astigmatism.
In my case I have nearly 3D cylinder astigmatism in my eyes, so I require toric IOLs and this lens does not offer that.
So I am limited to monofocal torics, the Symfony toric, and the Trulign (Crystalens toric) IOLs, if I don't want the added complexity of cornea surgery.
Srarr does make the Visian Toric Implantable Collamer Lens, which is foldable designed to correct astigmatism. The lens is available for correction of 1.00 to 4.00 D of astigmatism. it uses the same Collamer material as Nanoflex.
Thank you! The problem is bloody DYSPHOTOPSIA with hydrophobic acrylic, truncated/squared edges and probably refractive index=1.47. So now, after several months, I still have edge-glare, edge-flickering and halos. I refused multifocal lens because of that problems but I have them with monofocal too. I suggested the surgeon to use the nanoflex but she refused because she's not used to them and said that hydrophobic acrylic lens are the best on the market ...
Thank you! The problem is bloody DYSPHOTOPSIA with hydrophobic acrylic, truncated/squared edges and probably refractive index=1.47. So now, after several months, I still have edge-glare, edge-flickering and halos. I refused multifocal lens because of that problems but I have them with monofocal too. I suggested the surgeon to use the nanoflex but she refused because she's not used to them and said that hydrophobic acrylic lens are the best on the market ...
Do your pupils dilate to 5mm or greater?
I've heard that becomes an issue with IOLs with smaller diameter 6mm or less.
I have normal pupils, I have a tecnis zcb00 monofocal 6 mm optic.
I don't know, but in my opinion all aspheric monofocal IOLs are basically the same (I have a B&L silicone monofocal and have practically no glare).
If you try to relax and not focus on it, it's very possible you'll adapt to it and not notice it eventually.
Hydrophobic acrylic, smaller lens size, squared edges, high refractive index are all things that make glare and other disturbance worse. There are many studies on it.
yeah, heard of this already but you cannot "forget" you have a psychedelic film in your eyes every day, for months.
I have normal pupils, I have a tecnis zcb00 monofocal 6 mm optic. And I experience a hair like a shadow at the left side of the left eye. I can't change it now so I learned to accept it to make it easier. I am grateful for the people who invented and developed so far to give me the vision to see the world and enjoy the nature.
Now I have to dicide what mono focal IOL I should chose for the right eye. Does tecnis zcb00 have round shape IOL other than square shape. My surgary is 2nd week of December and I have to let the surgary manager soon. If I choose clear distance like the one I have at the left dominant eye, later on I might get couple of tweets to go glass free. Or I might get micro mono vision and I don't know about the numbers. I will not go with the mono vision, Bc I am already experience mental cloudiness since the first surgary done. Bc my right eye devoloped cataract and it is like living with mono vision. Thanks for the information of the square edge IOL.
Tecnis zcb00 jas both side squared edge, frosted ... but it doesn't help against positive dysphotopsia.
Not all aspheric monofocal iols are bascally the same: some are made of silicone, other of water-based acrylic, other made of collamer, some of PMMA, some are thicker, some are thinner, some have squared edges, some have rounded, some have half squared and half rounded, some have frosted, some are biconvex and some not, some are plate, some are 3 pieces. It's like saying "all red cars are the same".