Posted , 6 users are following.
Does anyone have personal experience with either the IC-8 or Rayone EMV iol implants set for mini- Monovision of 0.75 to 1.0 diopter offset in their non-dominant eye in cataract surgery?
0 likes, 9 replies
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rwbil Sunny4
Posted
You picked 2 of the least known IOL at least here in the U.S.
RayOne EMV from what I read is similiar to Vivity but not much information on it. I am guessing it provide just a little bit of EDOF, maybe an additional line, at the cost of contrast sensitivity.
The IC-8 creates EDOF effect using a pin hole optics and even has less information. I would imagine this pinhole effect comes with disadvantages. When I was researching my 2nd IOL I tried to get more information on the IC-8 as it promised EDOF with less side effects, but none of the doctors I contacted knew about it or recommended it. It was also odd how the articles I read kept saying it is for the non dominate eye. My gut feeling at the time was this IOL might be right for certain people who have particular eye issues.
Maybe there is so little information on this IOL, due to it being rather a novel approach.
vasily48550 rwbil
Posted
My impression is that EMV is more similar to Eyhance than to Vivity. If you check youtube video "Plus1 EMV | RayOne EMV Early Outcomes Webinar with Dr Phillips Kirk Labor" on Rayner's channel, timestamp 7:00, you'll see a comparison of MTF curves for Vivity, Eyhance, EMV and monofocal. The curve for EMV is similar to the curve for Eyhance except skewed differently. The curve for Vivity has much lower MTF values near the best focus compared to the other curves, but higher MTF values further away. Vivity is thus as different from EMV as from Eyhance.
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Also, please check timestamp 8:00 in the same video. It suggests that visual acuity at defocus levels < -1.5D is higher for EMV than for Eyhance, i.e. EMV is better. Yet, the comparison is made between with Eyhance, not with Vivity as they think EMV competes with the former.
Sunny4
Edited
Thank you for your reply. I keep hoping these newer EDOF lenses will get closer to full range of vision without the negative dysphotopsias of multifocals/hybrids and better contrast sensitivity. From what I've read online and on You Tube, these are the newest IOLs to come out for 2022 so far. I talked to a surgeon in the US, and Rayone EMV is out and getting remarkable results without dysphotopsias similar to Vivity but this brand isn't available in a toric lens yet. The doctors I've heard talk about the IC 8 lens are excited to get it soon in US as studies show they are getting patients up to 3.0 diopters (33cm) to achieve 20/32 reading vision while maintaining distance and intermediate vision at 20/20 and 20/25 respectively and the lens works with astigmatism up to 1.5 Diopters because of the pinhole effect. I think this is a wider range than Vivity or Synergy. The manufacturer showed it gets better contrast sensitivity than Multifocal and EDOF IOLs but as I recall it only reported Photopic conditions, not Mesopic conditions. They have FDA approval and the manufacturer expects their rollout in the US in 2nd Quarter 2022. check out this article: https://theophthalmologist.com/fileadmin/top/subspecialties/2019_August/Sponsored/0819-901_AcuFocus_final_PDF.pdf
Curious what people think about mixing one of these IOLs in a mini-monovision offset with a different iol ?
Also, any update on when Panoptix will be out on Clareon in any country?. I thought I read they got preapproval by FDA in US.
RonAKA Sunny4
Posted
No experience with either, but I have saved some links to articles. Google these if you don't have them already.
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eyewire 09.21.2020 Rayner to Launch RayOne EMV Enhanced Monofocal IOL
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The Ophthalmologist The IC-8 IOL: Big Advantages Through Small Apertures
vasily48550 Sunny4
Posted
Check youtube video "AcuFocus IC-8 small aperture IOL", it has a few comments from a patient who has IC-8. I'll quote:
"I have one of these implanted and I only see through it reasonably when my pupil is smaller than the mask. When it's larger which is most of the time my vision is very blurry."
"You have glare and halos?"
"Yes I did. The surgeon then added another sulcus implant on top of it to ensure my pupil could not open wider than the IC-8 implant. That improved things a lot but I still have pretty poor eyesight in that eye in low light. Also sometimes the pinholes don't line up for a while and then I see almost nothing."
Sunny4 vasily48550
Posted
i cannot find the You Tube video you reference about the patients experience with the AcuFocus IC-8 small aperture IOL only several videos from opthalmolofist praising thus lens. can you link the video here?
vasily48550 Sunny4
Posted
I posted the link, but the moderator deleted it. The channel is called "Dr Brendan Cronin", the video is 3 years old.
jimluck Sunny4
Posted
My doctor just told me the IC-8 US introduction has been pushed back to first quarter 2023. That's what AccuFocus told him at the ophthalmology convention last week.
The manufacturer recommends a monofocal in the dominant eye targeted for plano and the IC-8 in the other eye targeted for -0.75. Supposedly, you still get good distance vision at the 0.75 because of the pinhole effect, so it's not really minimonovision, and you also get good intermediate and near.
indygeo Sunny4
Edited
I have experience with the Rayner EMV in my near eye. I have a monofocal set to plano in my distant eye achieving 20/15. I was targeted for - 0.88D for the EMV lens but according to the follow up appointment I wound up at - 0.75. That's fine with me because with the EMV eye I can see pill bottle print at 11 inches to arms length and my distance is 20/30. In regards to contrast sensitivity I feel I've lost nothing. Also, no dysphotopsias. What surprised me the most about my "near" eye is that my distance vision a bit better than I expected. Not saying it's perfect, and I think I'm still neuroadapting a bit, but I think a mini-monovision strategy overall is a very good one when all tradeoffs are considered.
IG