Table of Contents
Which is better femto or PRK?
Conclusion: Femto-LASIK improves UDVA better than PRK-MMC in high myopia. However, because of increased coma, the quality of vision is reduced. In other words, visual acuity outcome is better with femto-LASIK and visual quality outcome is better with PRK-MMC.
What is a microkeratome blade?
A microkeratome is a precision surgical instrument with an oscillating blade designed for creating the corneal flap in LASIK or ALK surgery. The normal human cornea varies from around 500 to 600 micrometres in thickness; and in the LASIK procedure, the microkeratome creates an 83 to 200 micrometre thick flap.
Which one is better LASIK or femto Lasik?
Femto LASIK can heal faster and result in fewer complications than traditional LASIK because it uses a laser rather than a mechanical cutting tool to make a small flap in the surface of the eye. The end goal is to reshape the cornea with a laser to resolve vision problems like nearsightedness and farsightedness.
How does a microkeratome work?
The microkeratome works with two independent motors: one for the oscillation of the blade and the other for the forward movement. Once the cut is finished, the oscillation of the blades is stopped and the Pendular heads move to the start position. This allows very precise and smooth cuts.
Which type of laser eye surgery is best?
LASIK is the best known and most commonly performed. Many articles, including this one, will use the term “LASIK” to refer to all types of laser eye surgery.
Who invented microkeratome?
In the 1950s, Columbian Opthamologist Jose Barraquer developed the microkeratome and keratomileusis technique. He would cut thin flaps in the cornea to alter its shape and investigate how much of the cornea was needed to be left unaltered to provide long-term results.
Which LASIK surgery is best blade or bladeless?
Bladeless LASIK is safer and more accurate, but it should be noted that the difference is largely in the marketing (as both create an incision in the cornea) and that blade LASIK uses an automated blade, not a scalpel.
HOW DOES A femtosecond laser work?
How Does the Femtosecond Laser Work? In laser-assisted surgery, tissue is broken apart at the molecular level rather than cut with a blade. The femtosecond laser disrupts stromal tissue through a process known as photoionization. Targeted tissue is vaporized, creating a split where a cut would normally be made.
What are the 2 types of laser eye surgery?
There are many types of laser eye surgery available (LASIK, PRK, ASA, LASEK, Epi-LASIK, LBV, SMILE, PTK, YAG, SLT, PRP). Nobody has the exact same eyes so the treatment one person may be recommended by their eye surgeon may be different to another person.
How long will my vision be blurry after Femto LASIK?
LASIK’s Most Common After-Effects In the two to three hours immediately after surgery, your vision will be blurry. Although your eyesight will greatly improve within 24 hours, you may still experience intermittent blurriness and fluctuations in your vision for some time as your eyes adjust to the reshaped cornea.
What was the first laser eye surgery?
The First Laser Vision Correction Procedure (1988) The first laser vision correction procedure took place in 1988, when a 60-year old woman with a serious vision problem allowed surgeon Marguerite McDonald to perform the first photorefractive keratectomy (PRK) procedure on her damaged eye.
Can you watch TV the day after LASIK?
Since your eyes are still healing, they will be especially sensitive in the first 24 hours after the LASIK procedure. Because of this, it’s recommended to wait at least 24 hours before watching TV.
What type of cataract surgery is best?
Laser-assisted cataract surgery is the latest and most advanced method of performing cataract surgery. And many ophthalmologists prefer laser cataract surgery over traditional cataract surgery as a pre-treatment to “soften” cataracts.
Why is femtosecond used?
It was approved in 2001 by the U.S. Food and Drug Administration for use in laser-assisted in situ keratomileusis, or LASIK eye surgery. In LASIK, the femtosecond laser is used on the cornea to create a corneal flap. Underneath that flap, the eye can be reshaped, and the flap serves to protect the eye as it heals.
Are You comfortable with microkeratome or femtosecond laser technology?
I am comfortable with both technologies having used microkeratome technology for more than 12 years and femtosecond laser technology for three-and-a-half years. View Footnotes I initially acquired the femtosecond laser technology were for safety reasons.
Why do keratocytes increase after femtosecond laser surgery?
In any case, a lot more keratocytes die in the stroma above and below the interface after femtosecond laser surgery, and this leads to greater proliferation of residual keratocytes detected by immunohistological staining for mitosis markers.
Does the femtosecond laser cause inflammation?
The release of these pro-inflammatory modulators, however, and the tendency towards inflammation will always be greater with the femtosecond laser than microkeratomes with a sharp blade, unless the epithelial injury produced by the femtosecond laser can be markedly reduced.
Do TUNEL-positive keratocytes differ between IntraLase laser flap and microkeratome flap formation?
Our studies also show large differences in the number of TUNEL-positive keratocytes along the anterior and posterior lamellar interface at four hours following Intralase laser flap formation compared with microkeratome flap formation.