Vision after Cataract

[Roberto1964]

I have done Cataract to both my eyes 10 week ago and got in both the PhysIOL Finevision lenses trifocal.
I'm very happy with the result since I see perfectly at all distances. My Doctor says that I can be a pilot now that I see over 10/10 for far and I can read without problem a J1. Indeed I'm very happy with the overall result that went beyond all my best expectations.

However, even though at the eye clinic I see perfectly for close and a 12/10 for far with both eyes from 3 meters, when I look at things 15 - 20 meters far the images are not sharp. It seems that is improving slowly, but especially in poor light I cannot read well even from 8 meters. Also when I see light in the night, if they are over 10 meters far I see several circles that look like a round web. I have been told about Neuroadaptation and I would kindly like to have your confirmation.

Question 1) Why at 3 meters I can see small letters, sharply and better than my wife who is a little myopic, but if I see something at 10 meters I cannot read it sharply anymore but my wife  can read it clearly and better than me?  

Question 2) Can you confirm all of this is because of Neuroadaptation or could it be another reason?

Question 3) I have been under surgery 10 weeks ago. In case the problem is Neuroadaptation, how long it will take for me to see sharply even farer and stop to see the web-rings?

Thanks for your kind answer. Roberto Bianchi

[Mcav8r]

A related discussion, UV light filtering with multifocals was started.

[Shakno]

Thank you very much for responding!!  It's always nice hearing from someone who had a similar surgery and experienced some issues.  Sets my mind at ease for the time being.  Best of luck and thanks again!!

Shane

[Roberto1964]

Yes, I had a lot of fluctuations for the first 2 months. Especially when I got tired, in fact even now after 4 month, my sight has stabilized and I see very well from all distances, but when I'm tired I see blurry again. I guess is because after the surgery we will always have more than one picture on the brain included the lines (that actually are more like rings and many) and when tired, the brain has difficulty to process the picture and eliminate the extra feed from the other rings.
I noticed that the lines start to disappear after 2 -3 months but even now after 4 months I see them in the evening especially if I'm tired. My doctor confirmed that they should completely disappear after about 1 year when the brain has concluded the NUERO ADAPTATION. I'm sure you want to google that word and look at what is actually means because it explains a lot the rings and sight fluctuation. Hope the best for you, Roberto

[Shakno]

Roberto - After you had your cataract surgery did you have a flucuation in your eye at all.  Also did you see any lines in the side vision of your eye?  I am 12 days in and I am getting allot of eye flucuation so i was curious.  Thanks

Shane

[Shakno]

Roberto - After you had your cataract surgery did you have a flucuation in your eye at all.  Also did you see any lines in the side vision of your eye?  I am 12 days in and I am getting allot of eye flucuation so i was curious.  Thanks

Shane

[Anomalychick]

The reason why you can see things more clearly at certain distances but not at others is a function of how your lens works. The Finevision trifocal has three separate focus points. The natural lens of a young person has a moving focal point, which is means it has a continuous range of vision with dozens of separate points. You can now see perfectly at all three points, and you do have some depth of field based on things like pupil size and the amount of light, that expands your clear field of vision to take up most distances. But not all of them. There will be gaps that will be slightly out of focus.
     The rings you see around lights are caused by light bouncing off the edges and diffractive surface of your lens.
     Neuroadaptation means that over time your brain learns that the lights are not important visual input, so it ignores them. It also realizes that the full field of vision should be clear, so it fills in for the blurry spots as best as possible. It doesn't mean it gets better, but it means that you don't notice it anymore. The length of time is dependent on how good you are at ignoring these things. Some people manage in a few months, most within a year. If they continuously focus on visual imperfections, it takes a lot longer or it never happens.
      It sounds like you had a very good outcome. A tiny fuzzy spot and a few stray lights are nothing to worry about..

[Roberto1964]

Thank you for your answer. Still you didn't tell me how long it takes for the vision to improve thanks to the neuroadaptation. Good day, Roberto

[Timothy D McGarity, M.D.]

This is very natural. No IOL is perfect, but they approximate perfection. Neuroadaptation will help, but not cure this issue. Just know that your vision is mostly perfect, but no wholly perfect. No option out there can make your vision totally perfect, though we hope to deliver that success in the future.

Best wishes,
Timothy D. McGarity, Medical Doctor, Ophthalmology