Getting Lasik Eye Surgery
To have clear vision, it is said that the eye's cornea and lens must bend light properly
. If this does not happen, there is a high likelihood that the images you see will be blurry.
This blurriness is often referred to as a "refractive error." It may be caused by a difference between the shape of the cornea and the distance to your retina.
Lasik often uses an ultraviolet laser to precisely remove corneal tissue. This is supposed to give it a new shape so that light rays are focused clearly on the retina.
Lasik is meant to cause the cornea to be thinner. It is typically an outpatient surgical procedure that could take 10 to 15 minutes per eye.
The anesthetic that is typically used is eye drops that are meant to numb the surface of the eye. The procedure could be done when you are awake, but you can get medicine to help you relax.
Lasik may be done on one or both eyes during the same session. Originally during surgery, a special automated knife was used to cut a hinged flap of corneal tissue from the outer layer of the eyeball.
Now it has become common to use a different type of laser that is supposed to create the corneal flap. The flap is put aside and the laser can then be used to reshape the corneal tissue underneath.
The amount of tissue the laser will remove should be calculated ahead of time. Once the reshaping is done, the surgeon can replace and secure the flap.
There should not be any stitches needed. The cornea should naturally hold the flap in place.
An ocular shield or patch will probably be placed over the eye to protect the flap and to help prevent rubbing or pressure on the optic until it has had enough time to heal. Lasik is typically performed on people who use glasses or contact lenses because of nearsightedness.
It is occasionally used to correct farsightedness as well, however. It may also correct astigmatism.
For people wanting to get the procedure done, they should be at least 18 years old. This is because vision for most people continues to change until the age of 18, and sometimes even later.
Individuals probably should not have this procedure if they are pregnant or breast-feeding because these conditions may affect ocular measurements. Your eyes should probably be healthy and your prescription stable.
If you are nearsighted, you should probably postpone the procedure until your condition has stabilized. Nearsightedness has the probability of continuing to increase in some patients until their mid to late 20s.
To have the surgery, patients are recommended to be in good general health. For patients with diabetes, rheumatoid arthritis, lupus, glaucoma, herpes infections of the optic, or cataracts, they should discuss options with their surgeon.
It is important to note that Lasik may not be able to correct vision so that one eye can see at BOTH distance and near. However, surgery may be done to allow one eye to see near and the other far.
If you can adjust to this correction, it may eliminate or reduce your need for reading glasses. In some instances, surgery on only one eye may be required.
If your doctor thinks you are a candidate, ask about the pros and cons. Some people may need to have another surgery because the condition is over or under corrected.
Sometimes, patients will still need to wear contact lenses or glasses. Before the procedure, a complete eye examination should be done to make sure your eyes are healthy.
Other tests may be done to measure the curvature of the cornea, the size of the pupils in light and dark, the eyes' refractive error, and the thickness of the cornea. A signed informed consent form is needed before the procedure.
This form should confirm that you know the procedure's risks, benefits, alternative options, and possible complications. Immediately following the surgery, you may have burning, itching, or a feeling that something is in the eye.
This may or may not last for more than 6 hours. The doctor can prescribe a mild pain reliever medication.
It is recommended that patients not rub the eyes after Lasik, so that the flap does not dislodge or move. The day of surgery, vision can be blurry or hazy, but by the next day the blurriness should improve.
You should call the doctor immediately if you have severe pain or any of the symptoms worsen before your scheduled follow-up appointment. At the first doctor visit after the surgery, the eye shield should be removed and the doctor should examine your eyes and test your vision.
by: Tommy Greene
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