Laser-assisted in situ keratomileusis (LASIK) surgery is a type of laser eye surgery. During LASIK surgery, a surgeon uses a laser to change the shape of the cornea. A person can undergo LASIK surgery to treat nearsightedness.
Nearsightedness is another name for myopia. This is a type of
If a person has myopia, they may be able to read a book clearly but may have trouble seeing well enough to drive a car safely. There are a number of possible treatments for myopia, including LASIK surgery.
Read on to learn more about LASIK surgery and if it can effectively treat nearsightedness.
LASIK surgery is a procedure
The procedure is
Health experts generally consider LASIK a
After LASIK surgery, a person may follow up with their surgeon for an examination. About
The enhancement procedure helps correct residual refractive error and usually takes place within 1 year of the initial procedure. Enhancement procedures are more common in people:
- with high initial corrections
- who are over 40 years old
- who have astigmatism
LASIK surgery is usually
- dry eye
- the presence of a glare or halo around bright lights
- double vision
- blurry vision
- increased sensitivity to light
These side effects will usually go away on their own within a few months. An eye doctor may give a person eye drops or another medication to help deal with these side effects.
Other possible risks of LASIK surgery include:
- problems with healing
- vision loss, or seeing less clearly than before surgery
If a person experiences vision loss after LASIK surgery, they may require more surgery to fix it. In some rare cases, vision loss from the procedure may be permanent.
LASIK can improve myopia
A suitable candidate for LASIK surgery must meet certain requirements. These include:
- being 18 years old or over
- having a prescription that has not changed much in the last 12 months
- having a refractive error that LASIK can treat
- having corneas that are thick enough and healthy
- having good overall eye health
- having realistic expectations about what LASIK surgery can achieve
In some cases, a certain medical condition may make a person unsuitable for LASIK surgery. These conditions include:
- an unstable (changing) refractive error
- extreme levels of:
- severe dry eye
- corneas that are too thin
- corneal scars or disease
- keratoconus, which involves a cone-shaped cornea
- advanced glaucoma
- a cataract that affects their vision
- a history of certain eye infections
- unmanaged or uncontrolled diabetes
The below describes the typical procedure for LASIK surgery:
- The surgeon
will usea scanner to make an image of the person’s cornea. They will use this image to guide the laser during the procedure.
- The surgeon will place drops in the person’s eye to numb it. They may also use medication to relax the person before the surgery begins.
- Before the procedure, the surgeon will use an instrument to hold the person’s eyes open.
- During the surgery, the surgeon will cut a small flap in the person’s cornea and then fold this flap back.
- The surgeon then shines the laser into the person’s eye through the hole they have made.
- This laser then changes the cornea until it is the correct shape.
- Once the surgeon has finished using the laser, they will fold the cornea back in place.
There are a number of other possible treatment options for nearsightedness. These can include:
- Glasses: Eyeglasses are a
simple and safeway to correct nearsightedness. An eye doctor will prescribe the right eyeglass lenses to give the person the clearest possible vision.
- Contact lenses: Contact lenses
sit on the surfaceof the eyes and correct refractive errors. An eye doctor will fit a person with the right lenses to help correct their nearsightedness. They can also show them how to clean and wear them safely.
- Corneal refractive therapy (CRT): CRT, or orthokeratology contact lenses,
temporarily changethe shape of a person’s cornea to correct refractive errors. The individual wears these contact lenses overnight and takes them out in the morning. They allow the person to see clearly during the day without wearing glasses or contact lenses.
- Photorefractive keratectomy (PRK): PRK is a procedure that
uses lasersto reshape a person’s cornea without creating a flap in the cornea.
- Phakic lenses: Phakic lenses are plastic or silicone lenses that a surgeon
permanently implantsinto a person’s eye. These lenses can correct nearsightedness and reduce a person’s need for glasses or contact lenses.
Nearsightedness is another name for myopia. If a person has nearsightedness, it will cause objects in the distance to appear blurry.
LASIK surgery is a type of laser eye surgery. A surgeon can perform LASIK surgery to correct nearsightedness. During the procedure, a surgeon uses a laser to correct the shape of a person’s cornea. LASIK surgery is an effective and safe treatment for nearsightedness.