Symfony Toric IOL ZXT and halos
Posted , 9 users are following.
I'm mid 40s about to have a cataract removed and Symfony Toric extended depth of focus (EDOF) inter ocular lens (IOL), the ZXT series I believe. I have mild astigmatism and a mild prescription for long sightedness. Surgery will be done privately in Reading, Berks UK.
This lens sounds like it will improve my astigmatism and give me good mid and distance, but I may need reading glasses. My only worry is the halos and starbursts. At the moment my cataract explode headlights into a scattergun of light larger than the size of the car, and that makes driving near impossible at night. I assume these halos and starbursts are not that bad?
Has anyone had this lens inserted for a few months/years, and how bad are these visual artefacts at night? Can anyone draw what they see or maybe link to a visual representation online?
Eventually the other eye will need doing, but the cataract in that one isn't too bad yet.
Thanks
James
0 likes, 24 replies
marc14910 james70491
Posted
I only have the Symphony, non toric, which was implanted 5 weeks ago. While daytime vision and indoor vision is good but still variable, outside at night I have halos which have the 9 concentric lines within them. The halos are worst with LED lights at night, about 5-6 feet diameter. If both eyes were like this it would not be safe to drive at night. Fortunately my other eye doesn't yet need cataract surgery.
I still need reading glasses in the implanted eye although I can read briefly, but not clearly, without the readers. While it might get better, I am not happy with the Symphony and wished I had received mono focal. Tomorrow I have an appointment to dilate and examine my eye.
marc14910
Posted
After 4 months I exchanged the Symfony for a monofocal. Much better! Night vision is far better.
j_89867 james70491
Posted
When I met with my doctor, I told him that I wanted single vision distance lenses because I’ve worn glasses since age 7 and I wouldn't mind wearing glasses for closer up . I was concerned about halos and starbursts on a multi focal lens. He told me about the Symfony lens which he said would give me no more halo issues than a single vision lens and would give me intermediate and some close-up vision. So I took his advice and put a Symfony lens in my right eye. BIG mistake .
It is over a year later and I still have halo and starbursts issues with the Symfony lens . I put a single vison lens in my left I with no halo or starbursts. I recommend against Symfony . If you don’t mind wearing glasses, like I don’t, just get single vision lenses in both eyes and wear your glasses.
james70491 j_89867
Posted
can you confirm you had the ZXT?
Guest james70491
Posted
Hi James
Sorry to say it, but visual side effects with Symfony is well known, you will no doubt have side effects, but the scale of it varies from person to person.
I have a mix, where I have Zeiss Lara edof (very similar to Symfony) in one eye, and Zeiss Lisa Trifocal in the other eye. Both lenses are toric 3.0.
The edof is the worst of them when it comes to side effects, the edof is at least twice as bad as the trifocal.
The edof does not make any halos, but it makes starburst and concentric rings in some (most) conditions. The starburst are quite dense and fills up at least half of my side of the road, when a car comes towards me.
The concentric rings are bigger the further away the light source is. When the light source is far away, the concentric rings are very big, but the closer I get, the smaller they get. When the light are about 10 meters away, I would say concentric rings are about 2 meters diameter.
The trifocal makes a quite small halo around some lights, and it makes concentric rings that are about 1/3 size compared to edof. Trifocal never makes starburst.
It is about 5 month since my surgeries, I am still experiencing improvement, so brain adaptation is not finished yet.
When I look with both eyes, I mainly see the side effects from the trifocal, which are not bothersome at all, almost not worth mentioning. And even when I close my trifocal eye, and only look through the edof eye, and have full edof side effects, I have no trouble driving at night, even with the side effects, so I guess it sounds worse than it is, but I am also easy to please, I think some would find my side effects very annoying.
I was born with cataracts, and have lived with for 45 years, and my vision is 1000% better now, at least I think, also at night, so for me even the side effects have been a big improvement.
Overall my night vision is very good I think.
I am a big fan of the trifocal, it delivers what you would expect from a premium lens, and have very manageable side effects.
I am not that big a fan of the edof, that said edof eye is my best eye, and I enjoy the vision I have from it a lot, but I would not pick the edof again, if I had to make that choice with what I know now, simply because you get more in the package with the trifocal with less side effects. Today I would go for two trifocals or Oculentis bifocals, probably MF20.
The other thing to take into consideration is contrast loss, here is where the Oculentis is unbeaten among premium lenses.
The Symfony is not that far from a monofocal, the trifocal have the biggest contrast loss. Being that young as you are (yes, in cataracts world you are young) I think the surgeon suggest the Symfony to not add a bigger contrast loss, because who knows what happens with your vision the next 30-40 years.
From that point of view, the Symfony is a good choice, although if you want to play it safe, monofocal will always be the safest choice.
I know I am not making things easier for you, I know the phase you are in right now is stressing like hell.
Some will have different experience than me with the edof, but not that many have something to compare it with.
james70491 Guest
Posted
can you confirm you had the ZXT?
soks Guest
Posted
hi danish
when you say trifocal has higher contrast loss do you notice that eye to be more darker/dim than the edof eye?
Guest james70491
Posted
James - I have the Zeiss AT Lara. It is a slightly newer edof lens than Symfony, but it is more or less a copy of the Symfony lens, even that some studies show that Lara might could have a slight advantage over Symfony. I have read a lot of comments about Symfony, and I think the Lara and Symfony are very comparable.
Guest soks
Posted
Soks - it is hard to say, because Trifocal eye have always had somewhat worse vision, and it still have.
Far vision is one line better on edof eye, and I think this difference is because of the eyes, far vision should be where the lenses are most equal, and before surgery there were much bigger difference on the eyes.
Near vision is noticeable better on trifocal eye.
Colors in general and night vision are very similar, or they have the same difference in dark, in fact I feel I have quite good night vision.
So the contrast loss is from my point of view more theoretic than something I notice in real life.
I would recommend trifocal to anyone, that are considering premium lenses, in my opinion, the trifocal is the one that gives what we are searching for in the premium lenses.
james70491 Guest
Posted
Thanks for the detailed response. To be fair it's not really stressing me, I'm just interested in experiences with the ZXT lenses.
When you say "visual side effects with Symfony is well known, you will no doubt have side effects, but the scale of it varies from person to person", I assume that's based on charts like this:
I've never worn glasses regularly, my prescription is mild and seems to vary yearly I struggle with all the glasses I've bought and end up not wearing them, they distort and cause glare, and the worst is they are really awkward to wear on a motorbike with helmet. So the appeal of no glasses except for reading is very appealing to me.
I guess I'm hoping to be in the 90% that's no bothered by these artefacts. I've seen starbursts with my astigmatism for as long as I can remember and never even though to question them before now, so maybe there's a good chance.
Moderator comment:I have deleted the links to the images as they went to a site unsuitable for inclusion in the forums. Users can upload images directly to this site by using the image icon at the top of reply boxes.
Guest james70491
Posted
Well, don´t get me wrong, I am a big fan of premium lenses, but no doubt it also depends on your expectations, if you like the result or not.
But there are nobody that don´t have side effects from the Symofony, that is not how you should read statistics, it is a matter of who can tolerate the side effects well, and who can not.
Have you looked into trifocals at all?
I would highly recommend you look into trifocals as well, before you make your final decision. You simply get more in the package for the same struggle, trifocals give you reading vision in the same package.
And trifocal lenses are not like trifocal glasses, the images are mixed together, but you don´t feel it like that, you just feel you have vision all distances.
In fact Symfony is just a manipulated small range bifocal, and Zeiss At Lara is a manipulated small range trifocal.
If you want reading vision, you need about +3 added to plano.
Symfony makes +1.75, and Zeiss Lara makes +2.0
A trifocal gives you +3 or more.
Some people with good genes and strong vision can get reading vision with less than +3, but you never know if you are one of them.
In USA they have not had trifocals before September this year, because there have not been a trifocal with fda before now. Her in Europe we have had trifocals since 2010.
But now, after the Panoptix have hit the US marked, many surgeons that before used Symfony, have started to use the Panoptix trifocal instead.
The Zeiss At Lara edof that I have, that are similar to the Symfony you are interested in, are considered to be slightly better than Symfony, although only by a small margin, so there are other lenses on the marked, that could be interesting for you.
I understand that you have more or less your mind set on the Symfony, and it could very well be the right lens for you, but again I highly recommend that you visit other clinics and get other opinions, before you make your final decision.
In any case, I wish you the best of luck 😃
Sue.An2 james70491
Posted
Hi James 704
Will weigh in as I have 2 Symfony (non toric lenses) Had my surgeries in late 2017 six weeks apart. I live in a smaller province in Canada. At the time of my surgeries Symfony was out about 6 months here. I found these forum prior to my surgeries while searching for reviews. I was 53 at time of my surgeries. Both eyes had cataracts. Best corrected with glasses at the time was 20/60 RE and 20/50 LE. I have worn glasses for distance since childhood (-2.75 and -3.25). Reading was still good w/o glasses at the time although needed to start. Surgeon felt cataracts due to ling time steriod and cortizone use for eczema and allergies.
There were no trifocals here to choose from. Since that time the larger centers in Toronto Montreal Vancouver offer some. Still not available where I live.
You could say I am one of the fortunate ones in that my daytime vision is very good. Do not need glasses to function on a daily basis. I did buy readers +1.25 which I can count on 1 hand times I've used them - usually for extended periods of reading or low light conditions. I am not bothered by inside lights (but I had a lot of glare issues with cataracts so perhaps I don't recall what lights should look like. I do not see concentric circles around inside lights but do see them starting at dusk outside. I was bothered by this and glare fir several months and whether it is brain adapting or my not focusing on them so much I can't say but I do drive at night without a 2nd thought. Yes I still see concentric circles around red traffic lights, cars when they brake etc.
I did want to be as glasses free as possible and chose the latest lens available at the time. I did briefly consider monofocals with mini monovision but in the end due to migraines I suffer couldn't see myself opting for something where my eyes would be targeted for different distances. My cataracts were affecting my vision where testing that out with contact lenses wasn't a possibility. Perhaps this might be worth doing for you to try that out.
It is so difficult to decide which is best for you. Perfection is always the enemy of the good. Second guessing after the fact is never wise unless something goes terribly wrong. This is something you should take your time with carefully weighing options and really looking at your preferences: where you spend the most time, hobbies you have, do you do a lot of night driving, work requirements, etc. One cannot have it all and the decision requires making compromises. You can be relatively satisfied with the outcome. And there are dome gains too. I have never been able to see the ocean floor and coral reefs and now really enjoy it glasses free. Playing golf too now very enjoyable.
I wish you well in your decision
james70491 Sue.An2
Posted
Thanks Sue. My cataract has warped my lens so much I can only see 6" from my face in focus. Everything else a blur. I tried a prescription but it lasted 2 weeks before the cataract progression made the prescription useless. They were a huge eyestrain too.
Glad to hear your positive experiences!
james70491 Guest
Posted
Thanks again Danish Viking!
It's tough to make a selection on behalf of my specialist as patient selection is crucial, so he has already ruled out other options. I've asked specifically why trifocals weren't recommended and will see what he says, but second guessing him with my limited knowledge is tricky. That's why I'm really looking for experiences with the exact lenses (ZXT not ZXR) for patients with mild astigmatism and mild long sightedness. Otherwise I'm comparing apples and oranges. If people with the same lens and similar pre-cataract eyesight say it's awful lens and I'll regret if for rest of my life, then I know what to do.
I'll be honest, the technical info in your responses goes over my head. So the numbers mean nothing. I know what my sight was like before cataract and after in real terms, but sadly not numbers.
I think in hindsight, I wish I hadn't asked.
james70491
Posted
And to clarify, I didn't choose the lens, the consultant did.
Sue.An2 james70491
Posted
James - I think you would be best off going with a toric lens no matter which one you choose otherwise you'll need glasses to correct for all distances.