Considering LASIK for Extremely High Astigmatism?
If you are considering LASIK for extremely high astigmatism,
Hello.
I'm Dr. Minji Lee, head director of Gangnam ID Eye Clinic.
Our eyes are constantly working from the moment we open them.
Especially with the advancement of various electronic devices, our eyes are easily fatigued, and if you have to use glasses or contact lenses every time due to vision deterioration,
the resulting fatigue is indescribable.
The eye refracts light from an object to form an image on the retina and transmits it to the brain. Light entering the eye passes through the cornea and lens and is properly refracted to form a single focal point on the fovea of the retina,
allowing us to see objects clearly.
If there is a problem with this refraction process, blurred vision or vision loss may occur.
Most cases of vision loss are due to nearsightedness (myopia).
If you have myopia, you tend to squint when looking at distant objects. Statistically, about 25% of the population has myopia.
Therefore, many people correct their vision with glasses or lenses, but those who feel uncomfortable with this often look into vision correction surgery.
Vision correction surgery treats refractive errors such as myopia and astigmatism, allowing you to go about your daily life without glasses or lenses.
However, in the case of LASIK and LASEK, which are representative vision correction surgeries, it can be challenging to apply these procedures if you have high myopia, extremely high myopia, or extremely high astigmatism, or if your cornea is thin.
Today, we will actively explore and examine LASIK for high myopia, extremely high myopia, and extremely high astigmatism.
"Let's briefly touch on myopia and astigmatism."
Myopia is a condition where you can see close objects well but have difficulty seeing distant objects. This occurs when the image of an object forms in front of the retina.
On the other hand, astigmatism is a refractive error in which the cornea or lens has an irregular shape, causing light entering the eye to have two or more focal points.
This results in blurry vision regardless of the distance of the object, and in severe cases, it can easily cause eye fatigue and headaches.
Astigmatism is often accompanied by myopia or hyperopia rather than being an isolated symptom.
If children develop astigmatism, it can interfere with their vision development, so it is best to visit an ophthalmologist for examination.
"Is LASIK/LASEK difficult for extremely high myopia and astigmatism?"
Not everyone can undergo laser vision correction surgery.
In the case of LASIK and LASEK, the cornea is shaved with a laser to correct the refractive power.
Therefore, if myopia or astigmatism is severe, the amount of cornea that needs to be shaved also increases.
Therefore, if you have high myopia, extremely high myopia, or extremely high astigmatism, you often do not meet the residual corneal thickness criteria that must remain after LASIK or LASEK.
If you proceed with LASIK or LASEK vision correction surgery despite this, there is a high risk of side effects such as dry eye, blurred vision, corneal opacity, myopia regression, and keratoconus.
Therefore, caution is needed before proceeding.
"All-Laser LASEK, also possible for extremely high astigmatism"
All-laser LASEK is a method that improves upon the disadvantages of LASIK and LASEK.
Unlike conventional methods that use tools such as alcohol or brushes, it removes the epithelium in one step and immediately proceeds with laser irradiation.
This shortens the procedure time, and above all, it reduces pain and shortens the recovery period because the process of removing the corneal epithelium using the medical staff's hands is omitted.
In addition, it can reduce the amount of corneal tissue removed compared to conventional methods, thereby significantly lowering the possibility of side effects such as corneal ectasia, myopia regression, and corneal haze.
Because it enhances corneal stability, vision correction surgery can be applied to a relatively wide range of vision, depending on the individual's eye condition, even in cases of thin corneas or high myopia, extremely high myopia, or extremely high astigmatism.
"Lower Error Rate, Higher Satisfaction: Today LASEK, Save LASEK"
Today LASEK is performed using the next-generation excimer laser equipment called SPT Amaris Red, which removes the epithelium and ablates the stromal tissue at the same time.
It boasts the smallest and finest laser size among the equipment currently in use, and the wound area is reduced by an average of 40%, which can also reduce pain.
Technological advancements have not stopped there.
Thanks to the ability to track the eye in 7 dimensions, it is possible to precisely follow and correct even the slightest movements of the eye.
It is also equipped with a heat detection system that can prevent overlapping irradiation, enabling safe procedures.
Finally, the amount of cornea ablated is small, so you can expect a quick recovery, and the frequency of side effects such as dry eye, blurred vision, and myopia regression can also be statistically reduced.
Save LASEK is performed using the next-generation excimer laser equipment called ex500, which quickly and accurately irradiates only the epithelial layer of the cornea to correct the corneal stroma.
In addition, the burden of pain is reduced, and precise laser irradiation reduces the risk of side effects such as corneal opacity and dry eye, and a quick recovery can be expected.
Above all, if the basic requirements are met, vision correction is possible even in cases of high myopia, extremely high myopia, and extremely high astigmatism, so it is also called a vision correction surgery with a wide correction range.
After vision correction, the corneal epithelium regenerates, restoring a strong structure like before, making it one of the methods that many people are looking into.
"How to Find the Right LASEK for Extremely High Astigmatism?"
Since there is no perfect method for vision correction, it is important to correctly understand the advantages, disadvantages, and characteristics of each LASEK method for extremely high astigmatism and make a careful decision in order to achieve the most complete results for each individual's eyes.
It is important to establish a systematic plan through a precise eye examination process and to check whether there are skilled and experienced medical staff who can carry out the plan without errors.
It is also important to check whether systematic aftercare is provided.
The eyes are sensitive and delicate organs, and even small differences can affect the results and satisfaction.
Furthermore, it can be directly related to safety issues, so it is important not to take the process of carefully assessing the individual's current eye condition lightly, as well as the procedure itself.
Therefore, I would like to emphasize that you should refer to the information about LASIK for extremely high myopia that I have provided today.
Thank you for reading this long article.
Sincerely,
Dr. Minji Lee, head director of Gangnam ID Eye Clinic.
Source :https://blog.naver.com/tkatlrltkatl/224057748033
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