This is a guest article by Eyeklinik.
LASIK and different types of laser refractive surgery, for example, PRK and LASEK, all use an exceedingly particular excimer laser to reshape the cornea and fix refractive blunders including nearsightedness (myopia), hyperopia (farsightedness) and astigmatism.
Excimer lasers have upset the field of laser eye surgery. Furthermore, throughout the decades, propels in excimer laser innovation have expanded the security, viability and consistency of corneal refractive surgery.
Excimer lasers can evacuate, or “remove,” tiny measures of tissue from the cornea with a high level of exactness and without harming the encompassing corneal tissue.
There are a few excimer lasers that have been endorsed by the FDA for use in vision adjustment surgery performed in the United States, including:
- STAR S4 IR Excimer Laser System and iDesign Advanced WaveScan Studio System (Abbott Medical Optics)
- Allegretto WAVE Eye-Q Excimer Laser System (Alcon)
- TECHNOLAS 217Z Zyoptix System for Personalized Vision Correction (Bausch + Lomb)
- Nidek EC-5000 Excimer Laser System (Nidek)
- MEDITEC MEL 80 Excimer Laser System (Zeiss)
In spite of the fact that each of these lasers has its own interesting arrangement of components, research has demonstrated that all FDA-affirmed excimer laser deliver tantamount LASIK comes about.
Most specialists concur that your specialist’s expertise and encounter, and an exact assessment of whether you’re an appropriate LASIK applicant, are significantly more basic components influencing last LASIK results than unpretentious contrasts between excimer lasers.
How this lasers work?
The excimer laser emanates a cool light emission light of a particular wavelength (ordinarily 193 nanometers) to definitely evacuate corneal tissue. At the point when the surface of the cornea is reshaped in the correct way, it permits light beams to concentrate appropriately onto the retina for clear vision.
The high-vitality beats of bright light enter just a small measure of the cornea and can evacuate as meager as 0.25 microns of tissue at once. (One micron is a thousandth of a millimeter.)
An excimer laser redresses partial blindness by straightening the cornea; it remedies farsightedness by making the cornea more extreme. Furthermore, astigmatism can be remedied by smoothing an unpredictable cornea into a more symmetrical shape.
Excimer lasers are controlled by PC settings customized to rectify your particular refractive mistake. Your specialist will program the excimer laser with the coveted estimations keeping in mind the end goal to reshape your cornea and treat your medicine. The amount and example of tissue expulsion are one of a kind to every patient.
Most present day excimer lasers have computerized eye-following frameworks that screen eye developments and keep the laser shaft on focus amid surgery. Thinks about have demonstrated that eye trackers deliver better results and abatement LASIK confusions contrasted and past lasers that did not utilize eye-following frameworks.
Understudy Size, Ablation Speed And Patient Comfort
As of late, expanding proof has shown that bigger understudy sizes may influence laser vision revision results. On the off chance that your understudy extends in low light past the measurement of the laser treatment zone on the cornea, you may encounter vision issues, for example, glare and radiances during the evening.
A few specialists trust the measurement of the laser removal ought to be in any event as extensive as your student in diminish light. On the off chance that you have bigger understudies, the kind of excimer laser might be critical in connection to how huge the treatment zone (distance across) the laser is fit for making. You ought to talk about this with your specialist.
Treatment times additionally contrast among lasers, running from around 20 to 60 seconds or more, contingent upon your refractive mistake. You may consider that critical as far as your solace as you experience a technique.
You additionally might need to ask whether your specialist utilizes a femtosecond laser or a bladed surgical device (microkeratome) to make the corneal fold in LASIK eye surgery and how these two methodologies may vary as far as your solace. Numerous specialists take contradicting sides in the microkeratome versus femtosecond LASIK talk about.
While particular excimer laser innovation assumes a key part, at last it is your specialist’s aptitude and experience — and your reasonableness as an applicant — that will be the most essential elements influencing your LASIK result.