To whom is Excimer Laser applied?
∙ For myopia, astigmatism and hyperopiaover the age of 18 strong>is implemented.
∙ If the eye number continues to improve, it is necessary to wait. ∙ However, if there is an increase of up to 0.50 in the last one, excimer laser can be applied without the need to wait.
Who needs Excimer Laser?
Excimer laser myopia, also known as eye drawing They want the following people with astigmatism or hyperopia:
∙ Those who do not want to wear glasses or contact lenses,
∙ Whose nose structure is not suitable for wearing glasses strong>or those who cannot wear glasses for various reasons,
∙ Contact Lensthose who have difficulty in putting on and taking off,
∙ Sporty, or
∙ Those who are not suitable for wearing glasses or contact lenses for professional purposes can benefit from this method.
To whom Excimer Laser cannot be applied?
∙ Dry eye syndromeor
∙ Excimer laser is not used in some eye diseases that progress with deformation and thinning in the corneal layer of the eye, such as Keratoconus,
∙ Keratoglobus.
∙ Glaucoma,
∙ Uveitis,
∙ Herpes (cold sores) in the eye Excimer laser is not applied to patients who have had keratitis and those who have significant surface defects in the cornea,
∙ Patients over middle age, If there is cataract or its onset.
∙ If there is a tear or hole in the retina, laser treatment can be performed 20-30 days after surrounding it.
∙ In those with one eye?
Also;
∙ Rheumatism and
∙ In the active stages of collagen tissue diseases, Ankylosing spondylitis,
o Polymyositis,
o Dermatomyositis,
o Scleroderma,
o Sjögren's syndrome
o Systemic lupus erythematosus
∙ Advanced or uncontrolled DIABETES, ∙ Pregnant womenand
∙ Laser should not be applied to people receiving hormone therapy.
For this reason, the patient should undergo a complete eye examination and be asked if he/she has any other diseases.
Which part of the eye does the laser affect?
If we compare the eye to a watch and the corneal layer to which we apply laser to the glass of a watch, the laser will create a new lens in the corneal layer, which is like the glass of the watch. In this way, it provides a kind of evaporation to the set extent. There is never any heat during evaporation. The depth of the evaporated corneal layer varies according to the size of the eye. Since the effective distance of the excimer laser is small enough to be measured in microns, the laser beams cannot reach the inner layers of the eye and cannot cause any damage to other tissues.
Methods
∙ PRK
∙ PTK
∙ LASEK
∙ SMILE
∙ NO-TOUCH PRK
∙ EPI-LASIK
∙ LASIK
∙ I-LASIK (Intralase - LASIK)
∙ Topography Based
∙ Wavefront
To whom and how is the PRK Method Applied?
PRK in low diopter eye disorders and especially in eyes with thin corneas whose corneal layer is not suitable for LASIK and in some special cases is applied.
In the PRKprocess, which is the first application method of the laser, the excimer laser is applied to the surface by scraping the epithelial layer (like the skin of an onion) on the surface of the corneal layer. After the procedure, we attach an unprotected contact lens to the eye and send the patient home. Since the body usually regenerates the epithelial layer within 3 days, we leave the contact lens in the eye for 3 days and then remove it. Patients are also given temporary dark-coloured special soft plastic sunglasses and sunglasses to avoid being disturbed by too much light and sun. In the No-Touch PRK method, the epithelial layer is cleaned with a laser without touching the eye surface with a tool, and then the PRK method is applied. However, in this method, the thickness of the epithelial layer is assumed to be the same in everyone. This may also affect the result.
Who and How is the LASIK Method Applied?
Myopia, Astigmatism and Hyperopiapatients are asked to remove the corneal layer. Lasik method can be applied to anyone whose thickness and eye condition are suitable.
In the LASIKmethod, a thin layer of the cornea is lifted from one side by microkeratome or, for the last few years, by Intralase Laser, and this layer is closed back after the laser is applied.
In these methods, we temporarily give patients a pair of dark-coloured, special soft plastic sunglasses to prevent them from being disturbed by too much light and sun. It is recommended that patients sleep with these glasses for 1-2 nights.
What is the Difference between LASIK and i-LASIK (intralase-LASIK) Methods?
LASIKmethod is a 140-degree beam through the cornea with a tool called keratome. It is applied by removing a 160 micron thick layer. In this method, the thickness of the corneal layer cut may not always be the desired thickness and sometimes some problems may arise. These problems have been solved with a laser device called Intralase.
In the Intralase-LASIK (i-LASIK) method, we remove a layer of the desired thickness (usually 100 -110 microns), much smoother and of the same thickness on all sides, from the cornea in a process that takes 15 seconds. provides.
Healing Time
In the direct laser method, which we call PRK and No-Touch PRK, the eye is closed after the procedure. Contact lenses remain for 3 days and during this period burning, stinging, pain and blurred vision occur. The patient feels relieved after 3 days and his vision becomes clearer.
In the Lasik and intralase-Lasikmethods, the removed corneal layer is closed back after the laser procedure, and thus, only slight burning and stinging can occur since the surface layer remains in place. Light weight the next day There is no trace of the laser left except for the damage.
Immediately after Lasik surgery, patients can see without glasses and can return home.
Patients who undergo Lasik and especially i-LASIK surgery can go to work the next day.
Will There Be a Return on My Eye Number?
Some Although there may be a slight return in eye number in patients, it is almost impossible for the eye disorder to return to its previous number. It is possible to prevent or stop the return with medication.
Can Contact Lenses be used after Excimer Laser?
People who wish can use colored or colorless contact lenses after excimer laser procedures. .
What if I move my eyes while the laser is being applied?
There is no need to worry about this. In Excimer Lasers, laser pulses last very short. However, to prevent the risk of patients moving their eyes, each device has a kind of radar system that monitors the movements of the eye. As soon as the patient moves his eyes, the laser pulse stops, and when the patient looks properly again, laser application continues.
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