Laser vision correction is one of the delicate operations that corrects vision problems caused by the worst refraction, including nearsightedness, farsightedness and aberration.
What is the principle of laser vision correction operations (LASIK)?
The eye has many refractive surfaces (cornea, crystal) that work together to refract the light beam coming into the eye appropriately to be placed on the retina in a specific area, which in turn transmits the light energy coming to it to the brain in the form of a nerve impulse to be analyzed and interpreted.
The fact that the imagination falls on the retina at a certain point is the most important thing to get a clear vision.
Cross section of the eye
To correct vision defects (farsightedness, nearsightedness, astigmatism or aberration), contact lenses or eyeglasses can be used, which in turn form additional refractive surfaces that contribute to placing the imagination on the retina, and a surgical solution can be resorted to using laser beams.
Vision problems are surgically corrected by changing the curvatures (curvature) of the front surface of the cornea by means of a laser, thus changing the refractive power of the cornea. We resort to this method when the patient does not want to wear glasses and contact lenses.
This operation is used to treat refractive visual defects such as nearsightedness or farsightedness, presbyopia and deviation (astigmatism).
The laser vision correction procedure takes about 15 minutes, and it is performed on both eyes at the same time.
What are the techniques used to correct laser vision problems?
Laser vision correction surgery has developed rapidly during the last fifty years, and today it has many types. Let us review together these techniques:
1. Superficial Keratotomy (RK):
It is considered the first technique in vision correction operations, in which the doctor uses special tools to manually change and reshape the surface of the cornea. This process has improved vision, but its side effects such as seeing light halos may last a long time.
In the eighties of the last century, lasers were used in the field of ophthalmology, which revolutionized vision correction operations.
2. Laser keratoplasty (or also called PRK refractive keratoplasty):
In this procedure, we use a laser beam to scrape a thin layer of the cornea's surface.
It is considered one of the first successful operations that were performed. It is no longer common today, and its use today is limited to people with thin and thin corneas.
PRK . laser vision correction
The pain after the operation and the long time required for vision recovery compared to the LASIK operation, and similar results in between. All these factors have made LASIK a pioneering surgery in the field of laser vision correction.
3. Lasik surgery:
LASIK is the most common vision correction surgery. In which an incision is made on the surface of the cornea with a laser beam, and then the laser beam is directed directly to the inner corneal tissue in order to reshape it in the desired shape, and then the outer layer is returned to its previous position and fused on its own without stitches.
Laser vision correction LASIK technology
Little pain and immediate results This is the most important feature of LASIK vision correction and makes it one of the most common vision correction operations.
4. SMILE Technology
With this technique, we use a laser to correct vision without making corneal incisions, which reduces the appearance of unpleasant complications after the operation.
The SMILE technology is a suitable option for patients with myopia, and patients with chronic dry eyes.
5. Corneal ring transplantation:
A superficial incision is made in the cornea and rings made of a special material are implanted on both ends of the cornea Corneal ring implantation Limited to vision defects (astigmatism and farsightedness) caused by Keratoconus.
All laser vision correction surgeries aim to provide a permanent solution for patients, but with age a person who has had laser-assisted vision correction in their 30s or 20s may need reading glasses later in life.
What are the conditions for laser vision correction procedure?
For laser vision correction to be an appropriate option for you, the following conditions must be met:
- Stable vision for two years or more.
- Age is over 21 years old.
What are the contraindications of laser vision correction?
- The presence of an external ocular disease (recurrent conjunctivitis, inflammation of the edges of the eyelids).
- LASIK is not performed in patients with chronic dry eyes.
- Keratoconus and pregnancy are contraindications for laser vision correction.
- Having an eye disease such as glaucoma or cataract;
- Laser vision correction surgery is not performed in patients with diabetic retinopathy and lupus erythematosus.
What are the risks of laser vision correction?
Laser vision correction surgery is considered a safe procedure, but like any other surgical procedure, this procedure has few risks.
Temporary dry eyes after surgery, blurred vision and photosensitivity when seeing strong glare like car headlights when driving at night, redness in the eyes, these symptoms recede after 6 months of the procedure.
And if you have any concerns, contact your doctor.
Is laser vision correction surgery painful?
The operation is performed after applying a local anesthetic (eye drops) to ensure that no pain is felt during the operation.
During the LASIK operation, the patient may feel a little pressure on the eye due to the incision made in the cornea, and the patient may be accompanied by a feeling of rest that lasts for 24 hours after the procedure.
After PRK surgery, the patient feels irritation that lasts for a week while the cornea heals and heals.
Do I need a periodic eye examination after laser vision correction surgery?
It is imperative to conduct a periodic eye examination every two years, even without any complaints after laser vision correction, to help in early diagnosis of any disease that may threaten vision.
Learn about the latest types of laser vision correction surgeries, what is the laser process, and everything you want to know about laser vision correction surgeries and the latest ophthalmology techniques in Turkey through Contact us.
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Frequently asked questions and answers about laser vision correction in Turkey
What is the price of laser vision correction?
This determines several factors, but the cost of laser vision correction in Turkey ranges between 1200-1800 USD.
What happens after the vision correction process?
Wearing sunglasses for at least a year when exposed to the sun, not rubbing eyes for a month, wearing eye protection while exercising for a month.
What are the side effects of laser vision correction?
Dry eyes, redness, itching, blurry vision due to dryness. Most of these symptoms disappear within 3 months after LASIK.
What is the success rate of vision correction operations and LASIK in Turkey?
Patients' satisfaction with LASIK procedure was 88% more than using contact lenses according to another studies.
