Understanding LASIK Surgery
LASIK is the acronym of Laser-assisted in situ keratomileusis which is used to treat hyperopia (farsightedness), myopia (nearsightedness) and astigmatism. It is a refractive surgery. Like other refractive surgery types, the LASIK surgery reshapes the cornea to allow light to enter the eye to be focused properly on the retina for clear vision. Visit Dishler.com, the only Denver LASIK vision correction institute which features the Carl Zeiss workstation. Here is some useful information about this revolutionary remedy to those suffering from defective vision.
In majority of cases, laser eye operation is painless and finished within 15 minutes for both eyes. The resultant improved vision without contact lenses or eyeglasses can normally occur in just 24 hours.
Procedure of LASIK Surgery
First, the eye surgeon makes use of either a surgical mechanical tool named a femtosecond laser or a microkeratome to form a circular, thin flap in cornea.
Then s/he folds the hinged flap back to reach the underlying cornea (known as stroma) and detaches some tissue of the cornea with the help of an excimer laser.
This extremely specialized laser makes use of a beam of cold ultraviolet light to ablate (remove) microscopic quantity of corneal tissue to reshape it so that it can focus light more accurately on the retina for corrected vision.
In case of nearsighted patients, the goal of LASIK surgery is to flatten cornea, while for farsighted patients, a steeper cornea is needed.
Even excimer lasers can improve astigmatism by leveling an irregular cornea in a more regular shape. It is a misunderstanding that LASIK cannot correct astigmatism.
When the laser redesigns the cornea, the flap laid again in place, layering the area from where corneal tissue was detached. Next the cornea is left to heal naturally.
LASIK eye surgery needs just topical anesthetic drops and no stitches or bandages.
How It Works?
Before beginning of your surgery, anesthetic eye drops are administered to your eye to avoid any pain during the surgery. Your surgeon may also administer some medicines to help you relax.
Your eye is now positioned under the laser and your eyelid is kept open using an instrument known as a lid speculum.
The surgeon makes use of an ink marker to demarcate the cornea before forming the flap. A suction ring is administered to the eye front to avoid eye movements or contact loss which could influence the quality of the flap.
After the surgeon creates the corneal flap, s/he uses a computer to regulate the excimer laser for your specific prescription.
You are asked to observe a target light for a short time when the surgeon looks in your eye using a microscope as the laser passes pulses of light towards your cornea.
These pulses of light reshape the cornea painlessly, though you may sense some pressure on to your eye. You can even hear a clicking sound when the laser is operating.
LASIK surgery is done separately on each eye, and the procedure for each eye takes about five minutes.
Dr. Jon Dishler has earned a place in the top 1% LASIK surgeons in the USA after conducting more than 54,000 surgeries. Visit his site Dishler.com and get all your queries about laser and other eye surgeries solved.