Specialized Lasik Eye Surgery With Monovision
Monovision offers an alternative solution, either through contact lenses or refractive surgery. Monovision eliminates the requirement of dual glasses by correcting individual eyes to different focal lengths. Normally, the dominant eye is focused for distance and the non-dominate eye is corrected for viewing closer images. Monovision works by tricking the brain into believing that the contact lens is a part of the actual eye. Depending on their lifestyle and needs, patients can choose whether to correct both eyes for distance or blend their vision by having one eye corrected for distance sight and the other for near sight.
As the crystalline lenses of the eyes age, their capacity to focus (accommodate) at different distances naturally weakens and is sometimes lost. The result is a treatable condition known as Presbyopia, usually developing between the ages of 40-50.
Presbyopia patients are unable to maintain focus on either near or distant objects and need glasses to help accommodate for their weaker focal length. The most common course of correction for Presbyopia is through bifocal glasses or through separate glasses with varying focal lengths to accommodate for both near and distance vision.
Monovision offers an alternative solution, either through contact lenses or refractive surgery. Monovision eliminates the requirement of dual glasses by correcting individual eyes to different focal lengths. Normally, the dominant eye is focused for distance and the non-dominate eye is corrected for viewing closer images. Monovision works by tricking the brain into believing that the contact lens is a part of the actual eye. Depending on their lifestyle and needs, patients can choose whether to correct both eyes for distance or blend their vision by having one eye corrected for distance sight and the other for near sight.
Eye dominance is established by which eye works slightly harder than the other and is very simple to determine. To verify which eye is dominant: keep both eyes open, hold out a thumb at eye level and block either an object or a word in the line of site with the thumb. Close one eye and then close the other. The dominant eye is the one that did not see the object or word.
Nearsighted adults, who use glasses to help see distant images, tend to be capable of up-close reading without glasses. By giving them 20/20 distance vision, they will lose their ability to adjust focal lengths and focus. These individuals will then likely need glasses for reading. It is important to realize that Monovision is meant to give you functional, not perfect, vision.
LASIK with Monovision is a breakthrough technology for Presbyopia treatment. Instead of relying on glasses or contacts to accomplish Monovision, surgeons strive to permanently achieve the same results through a customized LASIK procedure.
A great option for undecided LASIK with Monovision candidates is to consult with eyecare professionals and sample contact lenses that will deliver comparable results to the surgical process. Keep in mind that the brain will need an adjustment period to relearn which eye is ideal for different tasks.
To ensure the ultimate results, LASIK surgeons will always include a discussion of Monovision during pre-surgical consultations of candidates over the age of 40 who use bifocals or reading glasses to treat their Presbyopia.
Patients over 50 who choose not to include Monovision in their LASIK procedure will likely need reading glasses post-LASIK surgery. Lens Replacement Surgery is a possible alternative for patients over 50 who want to correct both near and distance vision, without a dependence on glasses or incorporating Monovision.
For more information, speak with your eye-care professional.
Help answer the question about lasik monovision
Already 3rd week with monovision lasik, still seeing blurry for closeup..though it is improving?
from day to day…how long must I wait to adapt ….i heard 3rd week should be enough for vision stability. Pls help, I am kind of worry that I had made the wrong decision
i cant cut my fingernails properly, cant trim eyebrow properly, so sad to experience it
Pls share with me if anyone had done monovision before. Thanks so much…
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9 Responses to “Specialized Lasik Eye Surgery With Monovision”
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It can take up to six months for your vision to settle down; the cornea needs to heal. After six months, you may need another procedure; it happened to me. Give it some time and be sure to use lots of artificial tears; your eyes can dry up and this definitely affects your vision. Believe me, it is worth it in the end! Good luck!
Number one question…Did you try monovision in contact lenses prior to the procedure? If not, you may never get the quality vision that you desire. Monovision is not for everyone yet some cavalier surgeons do it on anyone over the age of 40. Regardless, give it about 1 month to gage your happiness. By then, your eye should have healed enough to judge the result.
For presbyopic individuals (those who need reading glasses for near work) monovision is a very effective strategy to achieve good (not perfect) vision at distance as well as near without the need for any glasses. In monovision, one eye is corrected for distance vision and the other eye for near vision. The procedure entails using PRK or LASIK to fully correct one eye for distance and undercorrect the other eye (by 1 to 2 D) for near vision. Not every patient is a good candidate for monovision. The monovision option may be associated with compromises of binocular visual function, and some people may not be able or willing to accept the vision compromises. (http://www.agingeye.net/lasik/lasik.php)
All patients who opt for monovision must understand that monovision has adverse effect on some aspects of visual function. Specifically, they need to understand the risks of reduced binocular visual acuity, stereoacuity, and contrast sensitivity. Monovision patients may require spectacle correction to obtain optimal visual functioning for certain tasks such as night driving or fine near-vision tasks. In addition, they need to be made aware of the risk of distance and near ghosting as a result of incomplete blur suppression. Blur suppression appears to be particularly problematic under night driving conditions because interocular blur suppression becomes less effective under dim illumination conditions. Therefore, patients must be advised of the need to wear distance glasses when driving.
Make certain of it.
i knew someone who went it and it worsened their eye problems
That's what I had done. The important thing to know is that you should spend the extra money on the Lifetime Acuity Plan, because I had it done 2 years ago and had to have an enhancement on my left eye just this past Friday. The doctors were really nice when they found out I needed the enhancement and since I had the Acuity Plan, I didn't have to pay any extra to get everything corrected. They don't exactly know why my eyesight changed, but I'm SO glad I invested the extra cash just in case…..But, I now have 20/20 again. It's pretty amazing.
I have done it 10 years ago and do not regret it for a second.
I do not have the perfect vision but I am happy.
Give it sometime longer it will all adjust just fine.
One of my eyes healed slightly faster then the other. I don't think there is a formula to it.
I got lasik a few years ago, and I also noticed some difficulty in focusing near. For me it was really only very near objects, so if I held the page out just a little farther I was fine.
Basically, the surgery has changed the way you focus, and your eyes/brain just needs time to adjust to this. You should be fine after a short while, but if you are really concerned (or the extent of your focusing problem is really major) then you should talk to your doctor.