30/08/2015
How Is LASIK Surgery Performed?
Before LASIK Surgery
Dr. Manzitti or someone of his staff will perform a thorough eye exam to ensure your eyes are healthy enough for the procedure. He will evaluate: the shape and thickness of your cornea; pupil size; refractive errors (myopia, hyperopia and astigmatism); as well as any other eye conditions.
The moistness of your eyes will also be evaluated, and a precautionary treatment may be recommended to reduce your risk of developingdry eyes after LASIK.
Usually, an automated instrument called PENTACAM is used to measure the curvature of the front surface of your eye and create a "map" of your cornea.
With wavefront technology associated with custom LASIK, you also are likely to undergo a wavefront analysis that sends light waves through the eye to provide an even more precise map of aberrations affecting your vision.
Dr. Ignacio Manzitti will also note your general health history and any medications you are taking to determine if you are a suitable candidate for LASIK.
It is a must to stop wearing contact lenses for a period of time advised by Dr. Manzitti (typically around one week) before your eye exam and before the LASIK procedure, as contacts can alter the natural shape of your cornea.
How LASIK Works
Before your surgery begins, numbing eye drops are applied to your eye to prevent any discomfort during the procedure. Your doctor may also give you some medication to help you relax.
Your eye will be positioned under the laser, and an instrument called a lid speculum is used to keep your eyelids open.
The surgeon uses an ink marker to mark the cornea before creating the flap. A suction ring is applied to the front of your eye to prevent eye movements or loss of contact that could affect flap quality.
After the corneal flap is created, Dr. Manzitti uses a computer to adjust the excimer laser for your particular prescription.
You will be asked to look at a target light for a short time while he watches your eye through a microscope as the laser sends pulses of light to your cornea.
The laser light pulses painlessly reshape the cornea, although you may feel some pressure on your eye. You'll also hear a steady clicking sound while the laser is operating.
LASIK is performed on each eye separately,
Immediately After LASIK Surgery
Upon completion of your LASIK surgery, Dr. Ignacio Manzitti or someone of his staff will have you rest for a bit. You may feel a temporary burning or itching sensation immediately following the procedure. After a brief post-operative exam, someone can then drive you home. (You cannot drive yourself until your eye doctor confirms your uncorrected vision meets the legal standard for driving.)
You should expect some blurry vision and haziness immediately after surgery; however, clarity should improve by the very next morning.
Your eyesight should stabilize and continue to improve within a few days, although in rare cases it may take several weeks or longer. For most people, vision improves immediately.
You may be able or not to go to work the next day, Dr Manzitti will evaluate that possibility.
Also, it is usually recommended that you refrain from any strenuous exercise for at least a week, since this can traumatize the eye and affect healing.
Generally, you will return to see Dr. Manzitti the day after surgery.
At this initial check-up, he or she will test your vision to make sure you are legal to drive without glasses or contact lenses. In most states, this requires uncorrected visual acuity of 20/40 or better.
As with any other surgery, always follow your doctor's instructions and take any medication prescribed. Also, avoid rubbing your eyes, as there's a small chance this could dislodge the flap until it heals and adheres more securely to the underlying cornea.
Long-Term Results
Laser eye surgery offers numerous benefits and can dramatically improve your quality of life. Most people achieve 20/20 vision or better after the surgery, but LASIK results do vary. Some people may achieve only 20/40 vision or less.
You may still need to wear glasses or contact lenses following laser vision correction, though your prescription level typically will be much lower than before.
While the procedure has an excellent safety profile, LASIK complications can occur and may include infection or night glare (starbursts or halos that are most noticeable when you're viewing lights at night, such as while you're driving).
A small percentage of people will need a LASIK enhancement, or "touch up" procedure, a few months after the primary LASIK surgery to achieve acceptable visual acuity.
You also may still need reading glasses once you reach your 40s, due to a normal age-related loss of near vision called presbyopia.
While LASIK surgery has a high success rate, it is important that you discuss all facets of the procedure with your surgeon prior to consenting to the surgery.
