Based on the result of the eligibility assessment, the goal of the treatment is to amend and reshape the cornea with laser to achieve an excellent sight.
Completely customised treatment programmes will define where and to what extent the cornea should be changed to achieve clear vision.
The laser will perform the changes within the cornea, or under the epithelial layer of the cornea. Based on this, two types of treatment options may be applied from technical point of view, treatments with flap creation and superficial treatments.
The essence of flap creation procedure is that a round flap is created on the outer surface of the cornea, which is folded back and the reshaping of the cornea will be performed on this free surface. The flap creation technique, which has been introduced in 1991, is still the most popular and most frequently used procedure. This method is applied in over 70% of interventions in Europe and around 90% of them in the US.
The flap can be created with a special tool, the microkeratome, or with the so-called femtosecond laser. Subsequently, the laser will remodel the shape of the cornea based on the chosen personalised treatment programme by evaporating the required amount of tissue from the corneal surface.
Flap creation procedures are painless, and generally, daily activities and work may be continued on the day following surgery.
For superficial procedures, the epithelial layer of the cornea is removed first, followed by the laser treatment. Procedures differ in the method of epithelium removal.
Of the superficial procedures, this treatment may be the solution in special cases. The epithelial layer of the cornea is separated bluntly with an extremely precise tool, the epi-separator, then the cornea is remodelled by the laser to the required shape based on the treatment programme. At the end of treatment, the epithelium is replaced.
LASEK (Laser Assisted Sub-Epithelial Keratomileusis)
The essence of the procedure is to loosen up the epithelial layer of the cornea with alcohol, and then the created epithelial flap is rolled up. Subsequently, based on the chosen personalised treatment programme the laser will evaporate the amount of tissue required for vision correction from the surface of the cornea. The epithelium will be smoothened back and recovery begins. Among the superficial treatments this is the most popular one.
PRK (Photorefractive Keratectomy)
PRK was developed in the 1980s which makes it the oldest laser procedure. The epithelial layer of the cornea is mechanically removed with a blunt tool. The laser will remodel the shape of the cornea based on the chosen personalised treatment programme by evaporating the required amount of tissue from the corneal surface. The cornea will reepithelialise within 3 to 5 days.
Our institute applies the laser technology of Bausch + Lomb; thus, in addition to superficial treatment, flap creation procedures both with microkeratome or femtosecond laser are also performed.
The best algorithms of Bausch + Lomb are used when planning ELITE treatments to enable effective and precise treatment of hidden refractive errors and complex refractive problems. The treatment will preserve the natural proportions of the corneal shape and remove as little tissue as possible, which will further improve vision quality under light conditions at daytime, at twilight or in the night.
The SUPRACOR treatment is a special laser procedure to treat presbyopia, i.e. aging eyes.
The EXTRACOR treatment presents another solution for aging eyes. With this, different clear visions are created on each eye, one for near distances and the other for far distances, combined resulting in a marked improvement of vision.
This project is funded by the European Union and the Hungarian Government. (GINOP1.3.2-15-2018-00039)