Aa
changing lens after cataract surgury
I have a mono focal lens in my eye to replace a cataract. Can it be removed one of the new multifocal lenses used in stead?
Best Answer
If you are very myopic in your unoperated eye and your IOL is set for distance vision, you undoubtedly have more than a 3 diopter difference between your eyes. Although there are individual differences in what people can tolerate, NOBODY would be happy with your current vision (and you will not adjust to it.) I'd recommend that you try wearing a contact lens in your unoperated eye. This would allow you to experiment (using different powers of 1-day disposable contacts) in order to discover exactly which (mini) monovision setting would work best for you. I predict that you will be very pleased with some version of either full or mini monovision.
Is there a time frame within which multifocal lenses can safely be replaced with monofocal lenses? That is, within how many months should such replacement be done from date of the first surgery (where multifocal was implanted)? Will such replacement pose risk to the retina?
This is I hope useful information that I have gathered after talking to the DR. giving me trial contacts. The idea is as JodieJ said use test contacts as it is a temporary test and see what works. Here are quick comments on one doctor’s viewpoints:
First remember my left eye already has monovision. The right eye testing consisted of trying monofocal for distance mid range and close. Than seeing how the combination worked together. Obviously distance was great, but for me midrange required one set of corrective glasses and near another. We then tried a “progressive lens”. The optical technology is the same technology used for the multifocal IOL. The goal was to have between the eyes clear vision with as little initial “blurring” as possible. The testing consisted of trying different combinations of power for each of the ranges and sitting for a while and testing far, mid, and near ability to see clearly and comfortably. We ended up with mid optimized and near, close. We did not try and dial near in completely. The end result was that I was just acceptable at 16-18 inches and very clear to 8FT, my left eye began kicking in around 7 feet with clarity . I found a single pair of reading glasses 1.25di (about) made my Right eye a very readable eye (the left eye required 2.5DP). I have been testing for the last two days this combination outside of the office. It is a very workable combination. There is no taillight haloing, e.g. looking thru my dominate left eye alone, then right eye multifocal alone, have the taillights looking the same, with no haloing.
Tomorrow we will fine tune and this will be what I have inserted later in the month. I will send results when the complete insert combination has stabilized. When I will know if the IOL results and contact results are the same.
Finally some short comments on questions I had and have asked the doctor on:
1—I asked about, the use of Crystalline (SP) lenses, he said they are risky; it has to do with the uncertainty of how strong the eye muscle is. It is also limited to relatively low correction limits, e.g. less than 2.5DP.
2-- For the Multifocal lenses’ and haloing. The problem of Haloing is not related to required DP correction factor. My brother, with a DP correct of around 11, is a candidate. The problem is mostly to shape (distortion) of eye and time to allow the brain to adjust to picking out the best image to "use”. My personal belief is we who have had crappy eyes for a long time (age 13 on in my case), and have lived with just seeing thru dirty, scratched, rain drop distorted glasses, will have a easier time of it as we have had to fight the distortion for a long time. Or another way, our brain is used to the problems and has already worked out solutions.
I hope the above is as helpful as your comments were to me, thank you again. I will be seeing both doctors before surgery again, if any of you have questions please let me know, I will ask them.
First remember my left eye already has monovision. The right eye testing consisted of trying monofocal for distance mid range and close. Than seeing how the combination worked together. Obviously distance was great, but for me midrange required one set of corrective glasses and near another. We then tried a “progressive lens”. The optical technology is the same technology used for the multifocal IOL. The goal was to have between the eyes clear vision with as little initial “blurring” as possible. The testing consisted of trying different combinations of power for each of the ranges and sitting for a while and testing far, mid, and near ability to see clearly and comfortably. We ended up with mid optimized and near, close. We did not try and dial near in completely. The end result was that I was just acceptable at 16-18 inches and very clear to 8FT, my left eye began kicking in around 7 feet with clarity . I found a single pair of reading glasses 1.25di (about) made my Right eye a very readable eye (the left eye required 2.5DP). I have been testing for the last two days this combination outside of the office. It is a very workable combination. There is no taillight haloing, e.g. looking thru my dominate left eye alone, then right eye multifocal alone, have the taillights looking the same, with no haloing.
Tomorrow we will fine tune and this will be what I have inserted later in the month. I will send results when the complete insert combination has stabilized. When I will know if the IOL results and contact results are the same.
Finally some short comments on questions I had and have asked the doctor on:
1—I asked about, the use of Crystalline (SP) lenses, he said they are risky; it has to do with the uncertainty of how strong the eye muscle is. It is also limited to relatively low correction limits, e.g. less than 2.5DP.
2-- For the Multifocal lenses’ and haloing. The problem of Haloing is not related to required DP correction factor. My brother, with a DP correct of around 11, is a candidate. The problem is mostly to shape (distortion) of eye and time to allow the brain to adjust to picking out the best image to "use”. My personal belief is we who have had crappy eyes for a long time (age 13 on in my case), and have lived with just seeing thru dirty, scratched, rain drop distorted glasses, will have a easier time of it as we have had to fight the distortion for a long time. Or another way, our brain is used to the problems and has already worked out solutions.
I hope the above is as helpful as your comments were to me, thank you again. I will be seeing both doctors before surgery again, if any of you have questions please let me know, I will ask them.
Since finding this forum I no longer bother surfing the net for other sites. This is the primo source for eye care.
I must say this is one of the most useful forums I have ever been on.
I am beginning to think that one of the key parameters to separate the mix of results is the persons required diopter correction, I need between a 3 and 4.5. I don't remember the exact number, could you please tell me what you started with?
With my eyes I have had to live with lots of "halos" when my glasses were rain wet or even a little dirty. Looking thru glare in sunlight was a accepted thing. It has been a happy thing able to see distance with out glasses even with the sun at that angle usually causing the glare. Further if reading for more than a minute and if the print was as small as a paperback book I needed to take my glass off, then I could read in comfort all day long if I wanted (very good book).
I am beginning to wonder if there is more success with multivision lenses of sometype for people with more correction needs. My wife who has excelent long distance vision is very happy with her monovision both eyes, just needs reading glasses when reading her computer or a book. Part of the reason for this question, is that my poor brother has a 10-11 diopter correction needed, he is approaching the age of needing cataracts. I will b e passing this thread along to him as this is for me a extremely useful discussion.
From my studies I have already thrown out the crystalline (SP) lenses where the muscle distorts the lens. He had heard about it and was excited. These lenses apparently only correct the near and mid range vision for people with mild eye correction needs, as that is what I have been reading to date.
Again thank you for this discussion thread. The questions I am asking I have had a terrible time of even getting clues too.
I am beginning to think that one of the key parameters to separate the mix of results is the persons required diopter correction, I need between a 3 and 4.5. I don't remember the exact number, could you please tell me what you started with?
With my eyes I have had to live with lots of "halos" when my glasses were rain wet or even a little dirty. Looking thru glare in sunlight was a accepted thing. It has been a happy thing able to see distance with out glasses even with the sun at that angle usually causing the glare. Further if reading for more than a minute and if the print was as small as a paperback book I needed to take my glass off, then I could read in comfort all day long if I wanted (very good book).
I am beginning to wonder if there is more success with multivision lenses of sometype for people with more correction needs. My wife who has excelent long distance vision is very happy with her monovision both eyes, just needs reading glasses when reading her computer or a book. Part of the reason for this question, is that my poor brother has a 10-11 diopter correction needed, he is approaching the age of needing cataracts. I will b e passing this thread along to him as this is for me a extremely useful discussion.
From my studies I have already thrown out the crystalline (SP) lenses where the muscle distorts the lens. He had heard about it and was excited. These lenses apparently only correct the near and mid range vision for people with mild eye correction needs, as that is what I have been reading to date.
Again thank you for this discussion thread. The questions I am asking I have had a terrible time of even getting clues too.
Full monovision involves distance vision in dominant eye, near vision in non-dominant eye. Mini monovision involves distance vision in dominant eye, intermediate vision in non-dominant eye.
I don't understand "full or mini monovision." Can you explain this to me? Thanks.
One of my brothers and one of my sisters have monofocal iol's. My brother can see everything clearly except small type. They are both very pleased.
I do have a mini monovision. I just need glasses for the tiniest of print. Very happy with my excellent distance vision and extremely good vision driving at night.. With the multifocal lens I could night drive at night because of the glare. I agree with JodiJ. I think you will be pleased with some version of monovision that suits you requirements.
HI, I had my surgeon set up the appointment with a Doctor to do just that I will be seeing hi Tuesday next week. As I told my surgeon I want to explore using easily recoverable tests what is best for me.
Before the next needed surgery I want to be a expert with my eyes. as a question to all, how bad is the "halo" As a reference point and yes I am over 3 diopter's, using my old eye and mixing with my new eye mono, I get a light bust about my eye. I am curious what people see that are un happy, and those that are happy.
Before the next needed surgery I want to be a expert with my eyes. as a question to all, how bad is the "halo" As a reference point and yes I am over 3 diopter's, using my old eye and mixing with my new eye mono, I get a light bust about my eye. I am curious what people see that are un happy, and those that are happy.
thank you all for your feedback. right now I only have the one monofocal lens in (Left eye). I am finding with my old glasses ( I am very myopic) I removed the lense where the monofocal is now. It feels very good after a day. I have better balanced vision before and have Mid Range vision, still working on depth perception, but having worn glasses nearly all my life I know the brain will solve this problem. I also have as good a near vision as before. I am learning to ignore the hazy overshadow due to the unfocused left eye mixing with the right eye. I am going to continue my research, I am a fairly calm person who has had to live with the haze, glare, spots, scratches etc. you have with glasses. It is good to know I can get the multifocal lens replaced, I was very worried about that. I am thinking until I know a lot more that I get clear glass for the old left eye and stay with the combo I am now using.
Where can I find more about the different types of lenses?
Where can I find more about the different types of lenses?
As yarrow stated, good results as experienced be yarrow are very rare. I am so happy yarrow had these good results. But, just reading yarrows post would be answer enough for me to stay with the monofocals.
Ernie, I got perfect--perfect--results with my multifocal reStor D-1 lenses, but this is apparently very rare. My doc is extremely selective about patients for this lens; specific features of my eyes made me an excellent candidate; and everything worked out unbelievably well for me, so I'm here to say that it is possible.
But 'patient selection' is the relevant term. I'd say you need to research this subject heavily--and I do mean heavily--and talk seriously with several doctors about your particular likelihood of success with this approach.
But 'patient selection' is the relevant term. I'd say you need to research this subject heavily--and I do mean heavily--and talk seriously with several doctors about your particular likelihood of success with this approach.
I had a multifocal lens implanted in one eye. It was a nightmare. The light glare at night was a horror. It was replaced with a monofocal lens and my other eye was also done with a monofocal. My eyesight is excellent.
My advise, stay away from the multifocal lenses. Stick with with monofocal and wear glasses when necessary. I would gladly wear progressive lenses than even think about multifocals.
As far as I am concerned (as are many others),multifocals are over rated and over priced
.As allmymarbles said, read all the posts.
My advise, stay away from the multifocal lenses. Stick with with monofocal and wear glasses when necessary. I would gladly wear progressive lenses than even think about multifocals.
As far as I am concerned (as are many others),multifocals are over rated and over priced
.As allmymarbles said, read all the posts.
Sure, but you had better read all the posts on this forum before you do something like that. The multifocal lenses have an extraordinary number of problems. There appear to be very few problems with monofocal lenses.
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