What Happens Before, During, And After A Lasik Eye Surgery Procedure?
By Gray Rollins
Since was approved by the FDA in the early 1990’s, the procedure has grown to become the most widely-performed eye surgery in the United States. is a surgical procedure performed on the eye to correct an individual’s vision and reduce dependency on eyeglasses or contact lenses. stands for Laser-Assisted In-Situ Keratomileusis, which literally means to "reshape the cornea from within using a laser.” The procedure has broad applications to treat refractive errors of the eye and can be used to treat myopia (nearsightedness), hyperopia (farsightedness), and astigmatism (an elongated cornea).
LASIK works by improving the ability of the eye to properly focus light. In a perfectly formed eye light entering the eye bends and directly hits retina, allowing the eye to produce a clear image. The majority of people, though, have imperfectly shaped corneas. Imperfectly shaped corneas do not properly refract the light on the retina, with the result that the viewed image is blurry and distorted. can correct these refractive errors by permanently changing the shape of the cornea. Once reshaped, the cornea is able to better focus light, eliminating the need for glasses or contacts.
LASIK patients will be given a detailed set of instructions to follow, beginning a few weeks before the procedure is to take place. It is critical that these instructions are followed if the surgery is to be a success. Patients wearing contact lenses will be advised to stop wearing their lenses anywhere from 2-4 weeks before the procedure, to give their eyes a chance to resume their natural shape. Certain foods, vitamins, beauty products, and medication can also affect the health of your eyes and may need to be avoided prior to LASIK. Failure to follow pre-operative instructions may result in a failed procedure, or the need to completely redo the surgery.
Patients remain awake and alert during surgery, although the doctor may administer a mild sedative to help keep the patient calm and relaxed. Numbing eye drops will be applied to the eye to serve as a local anesthetic. Since the eye’s natural
LASIK: Revolutionising correction of refractive errors
LASIK, an unprecedented advancement in eye care, offers people a safe and simple opportunity to see the world clearly, minus the inconvenience or discomfort of scratched or lost contact lenses, or the blocked side vision of spectacles. In simple term LASIK is a revolutionary laser technique for correction of refractive errors.
LASIK surgery works wonders for Packers' Ferguson
Ferguson said he went to three doctors seeking a panacea for the headaches. One suggested that LASIK surgery probably would solve his eye problem and just might curb the headaches.
New, Improved LASIK Surgery
Just how much better this new ?wavefront-guided LASIK? works isn't proven yet, but it's causing excitement among eye surgeons who say the three-dimensional maps let them customize treatment in a way never before possible.
Opening Your Eyes To LASIK
More and more people are going under the laser to shed their glasses and contact lenses. So the Eye Surgery Education Council has issued new guidelines to help patients determine whether they could be candidates for laser eye surgery.
BLADE-FREE LASIK SURGERY
Are you near-sighted? Far-sighted? LASIK eye surgery could rid you of your glasses. But if fear of going under the blade is stopping you -- stop worrying. Now, a new blade-free approach.
tendency is to blink when it comes into contact with foreign items, it is necessary to secure the eyelids to keep them out of the way of the laser. This is done using an instrument called a lid speculum. Once the speculum is in place and the eye is cleaned, a small ring is placed on the cornea to apply a strong suction to the cornea. This part of the procedure can be a bit uncomfortable, but the strong suction ensures that the eyes remain immobile throughout the rest of the surgery.
Next a flap is cut into the cornea, leaving a small hinge to keep it attached to the eye. This flap may be made using a small razor sharp knife called a microkeratome, or by using a laser – also called IntraLase. The suction ring serves as a precise guide for the microkeratome to ensure that the flap is made cleanly and accurately. After the cut has been made the suction ring is removed and the flap is gently teased away from the cornea and peeled back (towards the hinge) to reveal the underlying stroma.
The doctor will then dry the eye and ask the patient to stare at a fixed light, without moving, until the end of the procedure. Once the eye is in the proper position, the excimer laser will be activated. The surgeon will have already programmed the laser to remove the precise amount of tissue from the exact location(s) on your eye before the start of the procedure. More severe refractive errors will require a longer laser treatment, since more corneal tissue will need to be removed. As the laser pulses a beam of light into the eye to remove the excess tissue from the eye, the patient will hear a ticking or zapping sound and may smell an odor similar to that of burning hair. Once the laser has ceased pulsing, the surgeon will replace the corneal flap on the eye and smooth it out to ensure no surface wrinkles develop.
Since an eye is vulnerable after LASIK, it is very important to take extra precautions to protect the eye during the healing process. The doctor will give the patient an eye shield to wear immediately after the procedure. This shield should be worn while sleeping to prevent a person from rubbing their eye and dislodging the flap. The eye shield also prevents a person from inadvertently putting any pressure on the eye. Antibiotic ointment should be used to prevent infection from forming, while eye drops may be used to keep dry and scratchy eyes well-lubricated as they heal.
The doctor will make a follow-up appointment to evaluate the patient’s eyes within 24-48 hours from the time of surgery. This will allow the physician to monitor the healing process, evaluate the eyes for any potential problems, and begin accessing the success of the procedure. After the initial follow-up appointment, the patient will be asked to return for regular visits every few weeks, then every few months, until such time that the surgeon is confident that the procedure was successful.
Keep in mind that is not a risk-free procedure and that not all individuals are good candidates for LASIK. If you are interested in finding more about this procedure, contact your ophthalmologist and request an appointment. Article Source: http://articlecrazy.com Gray Rollins is a featured writer for MyEyeSurgery.com. To learn more about LASIK eye surgery and LASIK eye surgeons, visit us.
|
