Femtosecond Laser
Advanced technology for refractive procedures
What exactly do we mean by the term «femtosecond»?
The term femtosecond refers to the number of pulses per second with which a laser system operates. Specifically, 1 femtosecond is equal to 10 −15 seconds.
What is the role of femtosecond laser technology in refractive procedures?
Femtosecond lasers have revolutionized the field of laser refractive procedures, opening new horizons in corneal surgery by providing the ability to δεσιγν and perform corneal incisions with tremendous accuracy, speed, safety, and reliability. They have replaced devices that created incisions by using blades (microknives, scalpels), such as mechanical microkeratomes (or keratomes).
A femtosecond laser technology emits light pulses in the infrared spectrum and achieves photodisruption of tissue at specific energy levels. Photodisruption is perceived with small cavities or microbubbles at a precise depth and energy level. The result of a femtosecond laser application is the creation of a uniform layer of microbubbles (a corneal flap) on the corneal surface, which is then lifted (with a special surgical instrument), allowing access to the deeper layers for ablation process (by using an excimer laser), thereby correcting refractive errors (myopia, hyperopia, astigmatism) without the use of blades (scalpels).
What are the modern applications of femtosecond lasers in ophthalmology?
Femtosecond laser technology has made significant advances in recent years, essentially offering considerable advantages for both the surgeon and the patient by minimizing intraoperative complications and providing exceptional precision with repeatability in surgical techniques. The most popular applications of femtosecond lasers are the following:
Designing and creating a corneal flap in laser refractive procedures using the femto -LASIK method
Designing and creating corneal incisions for the insertion of intracorneal ring segments (ICRS) to face keratoconus
Corneal biopsies
Corneal transplantations (keratoplasty and endothelial keratoplasty procedures)
Cataract surgery (femto – cataract technique) with laser anterior capsulotomy and photodisruption of the crystalline lens
Laser incisions to correct astigmatism
Incisions for the implantation of special implants to treat presbyopia
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Get rid of glasses and contact lenses for good. Laser refractive procedures are the most popular surgical procedures for correcting common refractive errors (myopia, hyperopia, astigmatism), offering excellent post-operative results.