ORLANDO, Fla. — Simultaneous treatment of presbyopia and refractive error with LASIK and corneal inlay implantation improved vision, particularly in older patients, according to a large study presented here.
"At 6 months, close to 90% of patients reported being satisfied or highly satisfied with their outcomes," Minoru Tomita, MD, PhD, said at the American Academy of Ophthalmology meeting. "After 6 months, about 95% of patients reported decreased dependence on their glasses."
The study included 2,000 patients who underwent simultaneous LASIK and implantation of the Kamra intracorneal inlay (AcuFocus) between 2009 and 2011. The inlay was implanted in only the non-dominant eye.
Patients were classified into age group by decade: 40s, 50s and 60s.
Study results at 6 months postop showed that mean uncorrected near visual acuity at 30 cm was J2 in the 40s and 50s age group and J3 in the 60s age group.
Patients in their 40s gained three lines of vision, those in their 50s gained four lines, and those in their 60s gained five lines, Dr. Tomita said.
Mean uncorrected distance visual acuity was 20/20 or better in all age groups, he said.
Concurrent centration of the LASIK flap, ablation zone and inlay implantation site was not particularly problematic, Dr. Tomita said in response to a question from an audience member.
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Showing posts with label presbyopia. Show all posts
Showing posts with label presbyopia. Show all posts
Monday, November 7, 2011
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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.
About the Author: Gen Wright
LasikSurgeryRX is a consumer resource with information on Lasik Eye Surgery and lasiksurgeryrx.com/lasik_odds_of_20_20.php">Lasik Results and much more.
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