Posted , 55 users are following.
looks like technis eyhance is awesome. it is giving good intermediate with no rings and glare and halo. the diopter transition seems smooth. why isnt anyone going gaga over it?
it will also have no glare for folks with large pupils. being technis its will also make its way to US/CANADA.
5 likes, 207 replies
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Eduard3602 soks
Posted
Finally my surgery will be with -1,25D in non dominant eye.
As the Eyhance seems has an addition (some pages talk about 0,3D and others 0,5D or more), it seems can improve intermedian visual accuty than is my objective.
I liked to minimize halos, glares and starbust and to have a decent 3D vision, and if I can read something near will be welcome, but the normal is that I will need spectables for near vision.
After all, with this technique, always can use spectacles or soft lens in some situations if required. The problems in contrast at night and other visuals problems as halos or glares, cant be solutionated with spectacles or soft lens. I have only 46 years, and driving and living by night is "important".
RonAKA Eduard3602
Posted
The Eyhance seems to add about 0.3 to 0.4 D on the defocus curve in the intermediate range. Have a look at the chart below comparing the Eyhance to the standard monofocal lens. By doing a mini monovision with it you will of course loose at the distance end too, but it doesn't seem to be too bad. If your other eye is fully corrected for distance it should make up for it.
superberg Eduard3602
Posted
Eduard, do you know if you have the Technic ZCB00 which is the monofocal or the Technic Eyhance ICB00?
dDid you have post-lasik eyes?
Eduard3602 soks
Edited
Hi,
I can talk about my experience with Tecnics Eyhance in the two eyes.
Finally, right eye for far. Surgery was on December 10th, and for the moment is 20/32 aprox. (I never saw more with contact lens... always was 80% or maybe sometime 90% max.). Actually I am still putting on drops in my eyes. I can see the computer, blurry at 60 cm and good at 80 cm. Actually I have 0,75D of astigmatism in this eye, but seems not significative improve with correction in monocular vision. Maybe with monocular vision an in some weeks it can improve... but if not, I am happy too.
Left eye surgery was on December 14th, and was with between -1,25D and -1.50D (I suppose calculations are complex, not only diopters are involved in it). My vision is very good, and I can see the computer perfectly and the smallest print of my smartphone at 30 cm of distance. I can read without problems, for the moment.
No problems to see my Garmin watch... It will be great when running, to see the smallest print.
For the moment I am very happy. It was not in my expectations to see the smartphone as easily as I do.
Ah, and no dysphotopsias at night. Is the thing with I am more happy, is all very clear without fuzzy vision, glares or starbusts... all perfect for me. I can drive perfectly.
It is my experience for the moment... I think it will not be the same for all people, but I hope it can help somebody.
RonAKA Eduard3602
Posted
It sounds like you have a good outcome with both eyes. I would expect vision will improve as the swelling from the surgery goes away. My optometrist says it takes 8 weeks for the vision to settle down to the permanent value.
dom54026 Eduard3602
Posted
Hola Eduard,
Glad to hear all went well with your 2 Eyhance lens. Do you mind me asking where you had it done ? I live in Denia, Alicante, and need to have both my eyes done as well.
My eye doctor yesterday at a private clinic didn't seem too keen on the Eyhance lens and recommended the new Alcon Vivity lens.
Saludos, Dom
RonAKA dom54026
Posted
I think I would prefer the Vivity over the Eyhance as well. They are similar but the Vivity offers a little more close vision acuity. There is apparently a surgeon in Spain that was an early adopter of the Vivity lens - Dr. Alberto Bellone.
Eduard3602 dom54026
Edited
I am from Girona, and I did it in Institut Oftalmològic Clínica Girona.
I know Vivity is better for improved near vision, but I think have more chances of problems in night vision (glares, starbusts, etc.) and for me is not an option, the risk to have problems in night vision and to have problems driving at night.
I am very happy with my decision of monovision of -1.25D in left eye. I am independent of glasses, and I can see perfectly at night and can see my computer and my smartphone at 30 cm without any problem.
Maybe with Vivity was better? probably, but I read some review with problems at night. Yes, the probability is with all lens. I think Vivity and Eyhance are good options if you want less risk of night problems and improve intermediate vision. In my case, near vision too, thanks too monovision.
xen42188 Eduard3602
Posted
Hola Eduard,
Congrats on the great result.
How far can you see, and how clearly, just with your left eye?
Saludos
TheRabbit1940 Eduard3602
Edited
Eduard3602,
My research has brought me to the conclusion that Eyhance is the way to go over Vivity. In a month I am planning to have Eyhance implanted like you did. There is still an outside possibility of doing Synergy in the non-dominate eye that will otherwise be set for near vision. If I do Synergy I will be counting on any halos, starbursts, etc to be lessened by being in the non-dominate eye and being usurped by the EhHance in the dominate eye. But I will probably do bi-lateral EyHance set for monovision (around -1.25 to -1.5). Monovision has been natural for me because my cataracts caused monovision, dominate for far, other eye for near.
The kicker for me came from the Alcon literature that showed Vivity's decrease in MTF (Vivity .25 vrs EyHance .45 ) . Alcon clearly states that the trade off for the increased range of focus is a "significant loss of contrast sensitivity".
Like you night vision is important to me.
An interesting thing that showed me what starbusts are like, is that I drove after my eyes were dilated.Yeah I know I should not drive like that.
Thanks Eduard3602 for sharing your experience it is helped me a lot.
Eduard3602 xen42188
Posted
My vision with two eyes is 20/25 (80%), with glasses and 100% in near vision (with glasses too), and about 70% without them.
After surgery in my left eye I have -1D and -0.5 astigmatism, and I can see about 50%, I am not sure, in my last revision. In right aye, after surgery I have +0.5D of hypermetrophia.
But, I am happy with decision of monovision. Actually without glasses I am independent of glasses (to drive, computer, smartphone, running, etc.), and I only will need it, for improving night driving and when I want reading a book, for a more comfortable reading.
I am very happy with contrast sensitivity (the problem we can't compare and try...), and clearly meets my expectations. I can drive and running at night without problems (I dont know if with vivity was worse... cant compare...). For me contrast sensitivity was extremely important and to be independent of glasses in computer.
TheRabbit1940, I think vivity and eyhance are good elections and is very complicated to know which will be better. Every eye has factors, as aberrations and others than can make one lens be good for one and bad for other... but we have to choose and wait luck be by our side. I hope to read soon your experience. The best wishes and good luck TheRabbit1940!
assia99778 Eduard3602
Posted
Hi Eduard,
hope you will still have a look into this forum.
How are you doing seven months after your surgery? Are you able to read pocketbooks with small print, maps during hiking or if navigation in your car does not work due to signal loss? Did you loose far sight because of monovision? And did you try monovision before the surgery with contacts?
Eyhance toric is supposed to be my replacement IOL after explantation of trifocal implants. I received them (ZEISS LISA) last October. I'm myopic, about your age with significant astigmatism in both eyes (more than 2 D). Both implants are off-axis. I need glasses for far vision and have to put readers in front of them for doing computer work. In addition I'm suffering from big concentric rings/spiderwebs around point light sources which severely impair my night driving ability. No neuroadaptation within the last 9 months.
I have no chance to try monovision. Spectacle independence is important to me. For my work I have to swich between laptop, desktop papers, handwriting, books with small print. I'm often working simultanously with all of them (range from 40-80 cm). With glasses I have 20/15 distant vision. If I put 1.0 readers on top of them I can see letters perfectly clear on my laptop screen. Do I loose this with Eyhance monovision? What are your thoughts and experience?
Thank you!
xen42188 soks
Posted
For anyone following this thread, there was a new study published recently comparing Acrysof mono (sn60wf) with Eyhance. Nothing unexpected here: distance and near vision had no differences however intermediate was better (.1 logMAR or one line on Snellen) for Eyhance.
“Vision Outcomes with a New Monofocal IOL”
Guest soks
Edited
I'm considering Vivity but concerned about the loss of contrast sensitivity. So I took another look at the Eyhance tonight. Looking at the defocus curves and comparing to Vivity, Acrysof and Tecnis ZCBOO I noticed something interesting. The Eyhance defocus is measurably better than the J&J Tecnis mono but very similar / barely better than the Alcon Acrysof mono. I'm guessing that's because the Tecnis fully corrects for spherical aberation while the Acrysof only partially corrects for it. So its almost like the Eyhance is just J&J's version of the Alcon Acrysof. If that's the case I'd much sooner choose the Acrysof (less PCO incidence + blue light filter).
UPDATE: Ok I was going based on charts which are often not that easy to get precise numbers from (it's more about the shape of the curve) but i just found real data and the ICBOO does outperform the SN60WF for intermediate but only by 0.1 logmar. Still, one line is a noticeable difference. But not as dramatic a difference as say, Vivity vs. SN60WF
RonAKA Guest
Posted
I made this comparison and observation a while back in another thread. I came to a similar conclusion as you. Then I recall I discovered I was comparing single eye vision defocus curves to binocular vision...
.
Another interesting comparison would be the defocus curve of an aspheric lens to a non aspheric lens. I suspect the non aspheric would have a wider range of focus. And the non aspheric lens is the cheapest. A poor man's Vivity or Eyhance?
Guest RonAKA
Edited
Right. The interesting thing about Eyhance though is that it claims to offer this bigger "sweet spot" while also fully correcting corneal spherical aberation… getting it at or close to 0. So image quality and contrast is not impacted.
RonAKA Guest
Posted
That claim then begs the question as to how they are extending the range of focus. Asphericity is one way but it seems hard to use that and still claim asphericity is corrected. I recall seeing something similar on the Vivity. They say one surface is aspheric and then go on to claim the other surface give the range of focus. Seems like they are making vision aspheric corrected and then messing with it to give the range of focus...
rwbil Guest
Posted
As my momma always said there aint no Free Lunch. Until they come up with an adaptive lens that moves IMHO even Refractive EDOF will come with tradeoffs, probably contrast sensitivity.
And that might not even be an issue for most people. Maybe if a young person with great vision doing a clear lens replacement (which I think is insane and an Opthmalogist doing that have their licensed revoked) might notice it, but an older person with bad cataracts would not.
Guest rwbil
Posted
The "cost" with eyhance is a slight compromise in distance acuity and overall quality. But it seems to be extremely slight. Quality and contrast is extremely close to a traditional mono.
Yes with today's hard plastic lenses there in only so much you can do with your "light budget". You can focus it all at one point. You can split it up. You can try to "stretch" it. But you can't get 100% of the light at 100% of distances. Not until we have something like Juvene maybe. That said Eyhance is essentially a monofocal. It has no rings or distinct zones. It just has a subtle smooth wavefront tweak. Even the ZCBOO and Acrysof do that (for spherical aberration). So I think of the Eyhance as a mono plus lens. And I'm starting to think that I'd be more comfortable with that than the Vivity. The significant loss of contrast concerns me. Eyhance seems almost as low risk as a traditional monofocal but if it gets you a little more close up with very little tradeoff, why wouldn't you choose that?