Lasik
LASIK surgery is performed to correct vision problems. It is the best-known and most effective laser refractive surgery. LASIK stands for Laser-Assisted In Situ Keratomileusis. This surgery can be an alternative to glasses or contact lenses.
During LASIK surgery, a special cutting laser is used to thin the round-shaped clear tissue at the front of your eye (cornea) to improve vision.
In normal-seeing eyes, the cornea nominally bends (refracts) at the back of the eye. But in nearsightedness (myopia), farsightedness (hyperopia) or astigmatism, light bends the wrong way, resulting in blurred vision.
Glasses or contact lenses can correct vision, but reshaping the cornea requires refraction. So those who want to remove shared or contact lenses often take it.
Types of Lasik
LASIK is the most commonly performed smile eye surgery at present. It involves the creation of a partial-thickness corneal flap and using an excimer laser to separate the corneal bed.
Photorefractive keratectomy (PRK)
With PRK, instead of creating a flap, the top surface is scraped off. PRK is safer for people who are more prone to eye injuries.
laser-assisted subepithelial colectomy (LASIK)
LASIK surgery uses a unique cutting device (microkeratome) and exposes the cornea to ethanol. This procedure requires the surgeon to remove less cornea.
epileptic
In the epileptic procedure, the epithelium is separated from the central part of the cornea (stroma) using a mechanized blunt blade device (epi keratome). The cornea is reshaped with a laser.
Small Incision Lenticule Extraction
The cornea is reshaped using a laser to create a lens-shaped tissue (lenticule) under the cornea’s surface.
Intraocular lens
Corrective lenses can be surgically inserted into the eye (intraocular lenses) to improve vision.
Why is Lasik’s surgery done?
for nearsightedness (myopia)
When your eye is slightly longer than usual, or the cornea’s curvature is very sharp, light rays focus in front of the retina and blur distant vision. You can see close objects clearly, but not distant objects.
farsightedness (hyperopia)
When your eye is smaller than average, or the cornea is very flat, light focuses behind the retina instead of onto it. It leads to blurred near vision and sometimes distant vision.
astigmatism
When the cornea is unevenly curved or flattened, it results in astigmatism, which impairs the focus of near and distance vision.
Are there any injections given before lasik surgery?
Injections and Needles are not utilized during LASIK laser eye, a medical procedure. All things being equal, effective sedative drops are the main kind of sedation used to numb the eye during laser medical procedures. Patients are alert and happy during medical procedures.