laser refractive
Excimer Laser Eye Surgery
Excimer laser is an advanced laser technology that reshapes the corneal tissue at the micron level without generating heat, correcting myopia, hyperopia, and astigmatism. It is used in the core reshaping stage of methods such as LASIK, PRK, and iLASIK.
Prof. Dr. Efekan Coşkunseven
Ophthalmology · Istanbul
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Quick Answer
Excimer laser reshapes the cornea by vaporizing tissue at the micron level with ultraviolet light without generating heat, focusing light onto the retina. It is applied safely and in just a few minutes with computer-controlled systems that track eye movement.
What Is Excimer Laser?
Excimer laser eye surgery is an advanced laser technology that corrects refractive errors such as myopia, hyperopia, and astigmatism by reshaping the corneal tissue at the micron level. It reshapes the transparent layer of the eye called the cornea at the micron level, allowing light to be focused properly onto the retina. This system works by vaporizing corneal tissue with extreme precision, without generating heat.
How the Technology Works
Using ultraviolet light, the cornea is precisely reshaped at the micron level. Computer-controlled devices are equipped with advanced technology that tracks eye movements, which helps the treatment to be applied more safely.
Errors Treated
- Myopia: Inability to see distant objects clearly
- Hyperopia: Difficulty seeing nearby objects
- Astigmatism: Irregularity in the corneal surface
Surgical Process
The procedure is performed with anesthesia provided by eye drops and generally takes a few minutes. Most patients can return to daily life the same day after surgery.
Suitable Candidates
- Individuals over 18 years of age
- People whose eye prescription has not changed for a certain period
- Patients whose corneal structure is suitable for laser treatment
It is not performed in cases such as keratoconus, insufficient corneal thickness, advanced dry eye, uncontrolled diabetes, and pregnancy.
Risks
Rare and mostly temporary conditions such as temporary blurred vision, light sensitivity, and dry eye may occur. Treatment results last for a long time; however, near-vision problems may arise independently as age progresses.
Frequently Asked Questions
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Who is excimer laser suitable for?
It is applied to patients over 18 years of age whose eye prescription has not changed for a certain period and whose corneal structure is suitable for laser treatment.
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In which cases is it not performed?
It is not performed in cases such as keratoconus, insufficient corneal thickness, advanced dry eye, uncontrolled diabetes, and pregnancy.
Related topics
Treatments often evaluated together
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Laser Refractive Surgery
Laser refractive surgery is a surgical treatment method based on reshaping the cornea with a laser to correct vision disorders such as myopia, hyperopia, and astigmatism. LASIK, iLASIK, PRK, and SMILE techniques are applied following a personalized evaluation.
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PRK Laser Eye Surgery
PRK (Photorefractive Keratectomy) is a laser treatment based on reshaping corneal curvature with an excimer laser after the surface layer of the cornea has been removed. It corrects myopia, hyperopia, and astigmatism; it is particularly preferred in thin corneas.
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iLASIK Laser Eye Surgery
iLASIK is a modern method that uses two laser technologies together to correct myopia, hyperopia, and astigmatism: a femtosecond laser creates a thin corneal flap, after which an excimer laser reshapes the cornea.
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