What Is

Like other types of refractive surgery

February 28, 2020 | Author: Wahyu | Posted in Health & Fitness

The term “LASIK” is an acronym for “laser-assisted in situ keratomileusis.”

Like other types of refractive surgery

, the LASIK procedure reshapes the cornea to enable light entering the eye to be correctly focused onto the retina for clearer vision.

LASIK surgery is essentially pain-free and takes only about 15 minutes for the two eyes. The results — enhanced vision without glasses or contact lenses — begin immediately after the procedure and eyesight usually continues to improve and stabilize within a couple of days.

If you’re not a fantastic LASIK candidate, quite a few additional vision correction surgeries are available, such as PRK and LASEK laser eye surgery and phakic IOL surgery.

NEED AN EYE EXAM? Find an eye doctor near you and make an appointment to determine which vision correction surgery is ideal for you.

How is LASIK surgery done?

Or using a femtosecond laser


LASIK eye surgery: incremental

The surgeon then folds back the hinged flap to access the underlying cornea (called the stroma


Excimer lasers produce a cool ultraviolet light beam to eliminate (“ablate”) microscopic amounts of tissue from the cornea to reshape it so light entering the eye focuses more correctly on the retina for improved eyesight.

For nearsighted people, the goal is to flatten the cornea; with farsighted people, a steeper cornea is desired.

Following the laser ablation reshapes the cornea, the flap is then laid back in place, covering the area where the corneal tissue was removed. The flap seals to the underlying cornea during the recovery period following surgery.

LASIK laser eye surgery requires only topical anesthetic drops, without any bandages or stitches are needed.

Before LASIK operation

Your eye doctor will perform a thorough eye exam to ensure your eyes are healthy enough to the procedure. He or she will assess: the shape and thickness of your cornea; pupil size; refractive errors (myopia, hyperopia and astigmatism); as well as any other eye ailments.

The tear film onto the face of your eyes also will be assessed, and a precautionary treatment may be recommended to lower your chance of developing dry eyes after LASIK.

Usually, an automatic tool called a corneal topographer can be utilized to assess 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 most likely to experience a wavefront analysis that sends light waves throughout the eye to provide an even more exact map of aberrations affecting your eyesight.

Your eye doctor also will ask you about your general health history and any medications you are taking to establish if you are a suitable candidate for LASIK.

You should stop wearing contact lenses for a time period advised by your physician (typically about two weeks) prior to your eye test and prior to the LASIK process. This is because contact lens use may temporarily change the natural shape of your cornea.

What to expect during LASIK

Before your LASIK surgery begins, numbing eye drops are applied to your eye to prevent any discomfort during the procedure. Your physician may also give you some medication that will help you unwind.

The surgeon uses an ink marker to indicate the retina prior to creating the flap. A suction ring is applied to the front of the eye to prevent eye movements or lack of contact that could impact flap caliber.

After the corneal flap is made, the physician then uses a computer to correct the excimer laser for your particular prescription.

You’ll be asked to look at a target light for a brief time while your physician sees your attention through a microscope because the laser sends pulses of light to your cornea.

The laser light rhythms reshape the cornea, though you might feel some pressure on your eye. You’ll also notice a continuous clicking sound while the laser is working.

LASIK is performed on each eye individually, with every procedure taking only about 5 minutes.

Immediately after LASIK operation

Upon conclusion of your LASIK procedure, your physician will have you rest for a little. You may feel a temporary burning or itching sensation immediately following the procedure.

Following a short post-operative examination, someone can drive you home. (you cannot drive after LASIK before your eye doctor sees you the next day and affirms your uncorrected vision matches the legal standard for driving.)

You should anticipate some fuzzy vision and haziness immediately after surgery; however, clarity should enhance by the very next morning.

Your vision should stabilize and continue to improve within a few days, although in rare instances it might take several weeks or longer. For many people, vision improves immediately.

You might have the ability to go to work the following day, but some physicians advise a minumum of one day of rest instead.

Also, it is usually suggested that you refrain from any strenuous exercise for at least a week, because this can traumatize the eye and also affect healing.

Ordinarily, you will go back to see your eye doctor or your LASIK surgeon the day after surgery.

At this initial check-up, your visual acuity is going to be measured to create sure it’s safe for you to drive without glasses or contact lenses. In most states, this requires visual acuity of 20/40 or greater.

As with any other surgery, it is very important for you to follow your physician’s directions and take any medication prescribed.

Also, avoid rubbing your eyes as there’s a small chance you could dislodge the corneal flap if you rub your eyes aggressively before the flap has firmly reattached to the underlying cornea stroma.

Long-term results

Laser eye surgery offers numerous advantages and can dramatically improve your wellbeing.

Many people attain 20/20 vision or better after the surgery, but LASIK results do change. Some folks might achieve only 20/40 vision or not.

You may still have to wear eyeglasses or contact lenses after laser vision correction, though your prescription degree typically will be a lot lower than previously.

If you have mild residual refractive error after LASIK and you also need sharper vision for particular activities like driving through the night, prescription lenses using anti-reflective coating often can be helpful.

Furthermore, if you’re sensitive to sunlight after LASIK, glasses with photochromic lenses can reduce photophobia for clearer, more comfortable vision.

While LASIK has an excellent safety profile, LASIK complications may happen. These include infection and night glare (from starbursts or halos appearing around lights).

A small fraction of people may need a LASIK enhancement, or “touch up” procedure, a couple of months after the primary LASIK surgery to attain acceptable visual acuity.

You may also still need reading glasses once you reach your 40s, because of a typical age-related loss of near vision called presbyopia.

Whilst LASIK operation has a higher success rate, it is crucial that you talk with your eye doctor or surgeon any concerns you might have before you consent to having the operation. click here lasik surgery



Author: Wahyu

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