Q: I am 33 years old. I was told that if I do Lasik now, I will have problems doing cataract surgery in the future when I am older. Is that true?
A: This is not true. Successful cataract Singapore is possible for people who have had laser-assisted in-situ keratomileusis (Lasik).
The surgical success rate would be exactly the same as that of an eye that has never had Lasik, as it is technically not any more different or difficult to perform cataract surgery on a post-Lasik eye than it is on a virgin eye.
Lasik surgery in Singapore is a type of refractive surgery that corrects common vision problems, such as myopia (short-sightedness), astigmatism (when the eye surface is not round but resembles a rugby ball) and presbyopia (long-sightedness).
The corrective surgery enables the person to see clearly without spectacles. In 1999, the United States Food and Drug Administration approved Lasik for use in the US and the technique quickly gained popularity with patients.
Today, Lasik is the single most common refractive procedure in the world, with over 40 million procedures performed.
Whether you have had Lasik or not, everyone develops cataracts around the age of 60. This is due to the aging process of the natural lens inside each of our eyes.
Given that Singapore has one of the highest rates of myopia in the world, many cataract patients here may have had Lasik in the past. These patients would still wish to remain spectacle-free after their cataract surgery.
Some eye surgeons may say that the results of cataract surgery in post-Lasik eyes are unpredictable. They may want old records of your eye measurements before Lasik surgery.
In the past, the calculation formula for lens implant power used during cataract surgery was based on the pre-Lasik spectacle prescription and cornea curvatures.
But advances in calculation formula, cataract surgery techniques and lens implants in the last 10 years have entirely changed the landscape of refractive surgery. Several advanced mathematical formulas have emerged, and these are used for the precise calculation of lens implant power in post-Lasik eyes. The modern and more accurate formulas require no prior data at all.
Additionally, they provide greater refractive accuracy.
This allows surgeons to use premium lens implants for total correction of astigmatism and multi-focal implants for presbyopia correction in post-Lasik eyes.
New and innovative mono-focal and multi-focal lens implant designs to correct presbyopia can now improve refractive outcomes without sacrificing visual quality.
For those who have had mono-vision Lasik in their 40s and are used to it, it is advisable for them to maintain mono-vision, by undergoing cataract surgery with mono-vision lens implants.
Mono-vision is where one eye is corrected for seeing far distances while the other eye is corrected for near vision.
But some patients will opt for multifocal lens implants. It is a misconception that multi-focal lens implants can not be used in post-Lasik eyes. Highly specialized refractive surgeons who handle both Lasik and cataract surgery are able to achieve accurate results and good outcomes with multi-focal implants.
This has been shown by many published studies worldwide.
Today, patients' vision can be dialed back a few decades in time, even if they have had an earlier Lasik procedure.
Director and consultant ophthalmologist at the Dr Natasha Lim Eye Centre at Mount Elizabeth Novena Hospital
Yes, says Edward Manche, MD, a professor of ophthalmology and division chief of Cornea and Refractive Surgery at Stanford University School of Medicine.
The surgeon first cuts a thin flap of tissue from the front of the eye.
LASIK can correct vision problems like nearsightedness, farsightedness, and astigmatism.In the 20 years since LASIK has been around, doctors in the U.S. have performed more than 19 million of these procedures.
There haven't been many high-quality, long-term studies done on the outcomes, but the research that does exist finds the procedure to be safe and effective.Better Vision Through Surgery" LASIK is a really good procedure," "It's been able to change the lives of a lot of people, giving them excellent vision and letting them be free of their glasses or contact lenses.
More than 99% of people end up with 20/40 or better vision, which is clear enough to pass a driver's license exam.Improvements in the procedure over the years have made LASIK even more effective.
"The results have gotten steadily better and better over time as we've gotten more advanced technology," The femtosecond laser, introduced in 2001, uses pulses of light to cut a flap in the cornea.
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According to a research report "Cognitive Assessment and Training Market by Assessment Type (Pen- and Paper-Based, Hosted, Biometrics), Component, Application (Clinical Trial, Screening & Diagnostics, Brain Training, Academic Research), Vertical, and Region - Global Forecast to 2021", published by MarketsandMarkets, the cognitive assessment and training market size is expected to grow from USD 1.98 Billion in 2016 to USD 8.06 Billion by 2021, at a Compound Annual Growth Rate (CAGR) of 32.3%.Browse 63 market data tables and 47 figures spread through 150 pages and in-depth TOC on "Cognitive Assessment and Training Market - Global Forecast to 2021"The major forces driving this market are aging global population, increasing awareness about brain fitness, and advancements in technology.
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The assessment of cognitive functions is an integral part of decision-making during clinical drug development, as certain drugs can have an impact on the cognitive capabilities of the brain.
The market is expected to contribute the highest revenue for vendors offering clinical trials.Education vertical is expected to grow at the highest CAGR in the marketCognitive assessment solutions and services are used in the education vertical for screening prospective candidates for schools or colleges.
The leading cognitive assessment and training vendors for this vertical are Pearson Assessment and CogniFit.North America is expected to contribute to the largest market share and Asia-Pacific to grow at the highest CAGRNorth America is expected to hold the largest market share and to dominate the cognitive assessment and training market from 2016 to 2021, due to the increasing awareness among population about adopting medication for cognitive diseases.
The new generation in this region is more concerned toward the benefits of cognitive training, which is not just limited to patients with cognitive dysfunctions.
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