WHO ARE SUITABLE FOR THE PROCEDURE?
Excimer laser procedures are most often performed on and suitable for patients with short-sightedness (myopia), up to the dioptre value of -9.0 (exceptionally more) and age above 18. It is also used to correct far-sightedness (hypermetropy) in patients with dioptre value up to +4.0 and age above 35. Patients with mild to moderate astigmatism are also eligible for the procedure.
WHAT DOES THE EXCIMER PROCEDURE INVOLVE?
The most important part of each excimer procedure is photoablation. It is a laser part of surgery, during which the excimer laser corrects the surface of the cornea, changing its optical power and thus also the optical power of the entire optical system of the eye. Modified bending of the cornea causes the light rays that enter the eye to converge on the retina again, and thus the patient regains sharp vision.
We offer a life-long guarantee for all methods performed with excimer laser. That means that if your vision is impaired in the future and you need minus-value dioptres, the refractive error will be corrected again, free of charge. You can find details on life-long guarantee here.
MOST FREQUENTLY USED EXCIMER LASER METHODS
At our clinic, we make several types of procedures using the excimer laser. They differ in their way of removal of the surface part of the cornea, the epithelium:
Excimer laser surgery without cornea incision:
LASEK 6D, NO-TOUCH TRANS PRK 6D
+ no need to make an incision in the corneal tissue, less invasive procedure
+ suitable if the cornea is thinner, enabling correction of higher dioptre values
+ smaller risk of dry eye syndrome
- disadvantage lies in progressive sharpening of vision
- longer healing period (2-4 days), you can feel mild irritation, burning
Excimer laser surgery with cornea incision:
LASIK, FEMTO LASIK 6DHD
+ faster vision recovery, earlier return to work
+ sharp vision within several hours after surgery
+ potential risk of dry eye syndrome
- the procedure is not suitable for patients with a thin cornea
Each of the methods has its pros and cons. Your doctor will recommend the best method based on the examination.
HOW IS THE PROCEDURE PERFORMED?
Prior to the procedure, you will undergo a check-up and have local anaesthetic drops applied into your eye to ensure a completely painless procedure.
The procedure consists of three stages:
1st stage - preparation of the cornea for laser ablation (removal of corneal surface, an epithelium) by creating a lamellae or temporary release of the epithelium.
2nd stage - laser photoablastion with excimer laser, with removal of the necessary amount of corneal stroma. During this stage, you will look at a point of light above you. Excimer laser allows for eye movements, therefore you need not fear any accidental movement.
3rd stage - insertion of the stromal or epithelial lamellae back to the surgically-treated part of the cornea. In some cases, a temporary contact lens is put on the eye to ensure faster recovery and protection of the eye.
Although the surgery of both eyes does not last more than several minutes (the laser part only a few seconds), it is necessary to reserve 2-4 hours for the entire procedure that involves preparation, procedure, post-surgical treatment and advice.