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LASIK

lasixLASIK is a refractive surgery that corrects vision, but has almost no pain afterward and produces improved vision by the next day.

The surgeon uses a either a microkeratome or a laser to cut a thin, circular flap in the cornea.  The flap is folded back so that some corneal tissue can be removed using an excimer laser.  This cool, ultraviolet light beam removes tiny pieces of tissue from the cornea allowing the surgeon to reshape the cornea.  The surgeon then lays the flap back in place to cover the altered cornea.

When done correctly, they eye is better able to focus light onto the retina thus providing clearer vision. 

LASIK helps both farsighted and nearsighted people.

The surgeon can either flatten the cornea which is too steep in nearsighted people or increase the steepness of the cornea for farsighted people.

The excimer laser is also used to correct astigmatism by smoothing the cornea out into a regular shape.

The surgery takes about 5 minutes and the patient is awake throughout the entire procedure.  If the patient is nervous, the surgeon may give a mild sedative.  Drops are used to anesthetize the eyes.

The surgeon will have the patient lie down and position the eye under the laser.  A retainer is used to keep the eyes open, but it is not uncomfortable.  A suction ring keeps your eye pressurized.

A marker is used to mark the cornea before the flap is cut.  The doctor cuts the flap using either a microkeratome or a laser.

The laser is adjusted by a computer for the patient's prescription.  The patient looks at a light while the doctor watches the eye through a microscope.  The laser sends pulses of light onto the cornea.  These pulses are what reshape the cornea.

A slightly acrid odor may be noticed while the procedure is going on due to the tissue being removed.

The procedure's time is based on the strength of your prescription.  The worse your eyesight, the longer it will take to correct.

If both eyes are to be done, there will be a break between the two procedures.  Many patients have one eye done and wait a few days to have the other eye treated.

The patient will need someone to drive them home after the surgery.  Once home, the patient should rest for several hours.  While some doctors say it is alright to return to work the following day, others recommend resting for a couple of days.

NO strenuous exercise for one week!  This can cause trauma to the eye.

And, be careful to not rub your eye since you could move the corneal flap before it is healed.

Most patients have improved vision almost immediately.  Others may improve more gradually over days or even weeks.

The patient may still require glasses or contacts after the correction, but the strength will be lower.

The patient should be aware of any worsening of the eye and alert the doctor immediately if this happens.