Lasik laser vision correction is a unique opportunity to get excellent vision and to get rid of glasses and contact lenses forever. Eximer Ophthalmology Clinic was the first in Ukraine to offer this safe and reliable way for critical vision correction over 20 years ago. Since then, thousands of people have gained excellent results and have forgotten about their bad eyesight. Today, Eximer Ophthalmology Clinic provides a full range of laser vision correction methods. The excellent results are possible also due to individual approaches based on medical indications and diagnostics of the visual system.
Laser correction by Lasik method
The LASIK method (LASIK — Laser-Assisted in Situ Keratomileusis) is the most common method of excimer laser-assisted vision correction. It is a safe, painless, and highly predictable procedure that allows you to regain good vision with the shortest recovery time.
Laser vision correction consists of changing the cornea refracting power by giving it a new shape through laser treatment so that light beams can be focused precisely on the retina.
How does the laser form a new corneal surface?
Laser vision correction is based on the process of tissue transition from solid to gaseous state under the light, which is called photoablation (vaporization). The excimer laser radiation forms a bi-atomic gas molecule in an excited and highly unstable state. The “life cycle” of this molecule is rather short. It disintegrates instantly, just in milliseconds. Its disintegration leads to lightwave emission in the ultraviolet range. Exposure of the corneal tissue to such radiation in a given range causes intermolecular bonds to disconnect, resulting in the evaporation of a part of the tissue.
Photoablation is not accompanied by an increase in the temperature of the surrounding tissues, so, contrary to popular misconception, there is no “burning out” of the cornea during laser correction. With every pulse, the laser removes a layer 0.25 µm thick, which is approximately 1/500 of the thickness of a human hair. The result is a precisely measured new cornea shape, which makes it possible to correct almost all types and degrees of refractive anomalies.
Peculiarities of the LASIK method
During LASIK vision correction, an excimer laser is applied to the inner cornea layers. The aim is to preserve the upper epithelial layer which serves as a natural protective lens of the eye after the correction. This method excludes painful feelings after the surgery, the risk of corneal opacity and image distortion, and minimizes the recovery period.
A corneal tissue flap is formed to gain access to the inner layers of the cornea. A special device called a microkeratome is used to do this. The flap is folded back and laser treatment is performed on the inner cornea layers. After the excimer laser is completed, the flap is returned exactly in its original place and is reliably fixed by corneal collagen.
Advantages of LASIK laser vision correction:
- Stable predictable result;
- No painful sensations;
- Quick laser exposure;
- Fast vision restoration;
- No adverse effects;
- Wide range of application: myopia up to -15, hyperopia up to +6;
- Good vision for years to come.
Laser vision correction result
Laser vision correction with LASIK method enables to correct myopia, hyperopia, and astigmatism quickly and painlessly without any serious limitations afterward. Laser correction not only provides excellent vision but complete relief from glasses and contact lenses, as well as the restrictions associated.
After the LASIK correction is done, a person gets a clear vision in 1-2 hours. As a rule, people return to their daily routine the next day after the correction.
Equipment for LASIK laser correction
Eximer Ophthalmology Clinic employs an American VISX Star S4 IR laser for LASIK vision correction. The VISX Star S4 IR laser system features a complex approach, which guarantees a maximum smoothed surface of the cornea during laser correction, monitoring possible minor eye movements (built-in Iris Registration and Eye-tracking systems), maximum compensation for complex distortions of all the optical structures in the eye, and the Variable Spot Scanning tissue preservation technology makes exposure as attenuated as possible.
To form a corneal flap, a special Moria Evolution 3 high-precision device is used, which allows to improve significantly the quality of laser correction. It helps to form a corneal flap according to individual parameters (required to preserve corneal integrity), while its attachments and settings enable correction according to a unique thin flap technology, which is recommended for patients with certain corneal peculiarities.
Facts about the LASIK method
- The LASIK method is the most popular. It is used to restore eyesight on all continents.
- The first LASIK correction was performed in the USA in 1989.
- The LASIK method is used in the leading ophthalmological centers in 45 countries worldwide.
- The LASIK method has been applied in more than 20 million LASIK corrections worldwide over the last ten years.
- Not a single case of eyesight impairment due to laser exposure has been registered in the whole history of the LASIK method application.
- More than 95% of people having their eyesight restored by LASIK would recommend this procedure to others.
- The whole procedure takes 10-15 minutes (both eyes).
- There are equal numbers of women and men among those who have recovered their eyesight using the LASIK method.