The Benefits Of Laser Eye Surgery ? ArticleLearn.net

Laser eye surgery can effectively correct some types of vision problems, such as short- sightedness (myopia), far-sightedness (hyperopia), and astigmatism. These techniques use computer-controlled lasers (high-intensity light-beams) to modify the shape of the cornea. It is designed to reduce or eliminate the need for eyeglasses or contact lenses. This cost-effective, low-risk procedure is relatively quick, and has a very high success rate. Patients generally recover from the procedure with perfect vision.

These procedures are performed on an out-patient basis. The patient remains awake during the procedure, and can leave and resume normal activities when it?s completed. However, driving is not recommended until the eyes have fully healed and vision is restored. This usually takes several days.

There are several surgical techniques which are commonly used. During each method, the equipment emits steady pulsing sounds. These are created by the emissions of the high-intensity light- waves.

PRK (Photorefractive Keratectomy) surgery is one of the first types of these procedures to be devised. This process involves the penetration of a cool laser into an eye to modify the shape of the inner cornea. It is an effective technique for those with thin corneas. After the shape of the cornea has been modified, it can effectively focus the light passing into the eye and direct it to the optimal spot on the retina to create perfect vision.

Two other forms of surgery are Lasik (Laser-Assisted In Situ Keratomileusis) and Lasek (Laser Epithelial Keratomilieusis). These procedures are very similar. The main difference is the tool which is used to create the incision in the eye?s outer layer, called the epithelium. Both procedures begin with anesthetic drops applied to the eye. Then, a small incision is made in the epithelium to create a thin flap. In Lasik, the incision is made with microkeratome, which is a very precise instrument. In Lasek, a different precision tool is used, known as a trephine.

The physician then drops a dilute alcohol solution into the eye. The next step involves lifting the flap to allow the penetration of targeted, concentrated pulses of high-intensity light rays. The light-beam reshapes the corneal tissue. After the re-shaping process is completed, the flap is returned to its original position. In order to protect the eye and stabilize the epithelium during the healing process, a protective contact lens is applied, and worn by the patient for a few days.

Epi-Lasek (Epithelial Lasek) is another form of treatment. This procedure is appropriate for patients whose cornea is thin, or those who do not have enough tissue to create a flap. This is especially beneficial for workers who have suffered occupational trauma to their eyes. No alcohol is used during this procedure, because it can destroy the epithelial cells. Recovery from this process takes longer than the recovery from the Lasek and Lasik surgeries.

Laser eye surgery can be beneficial for many people who suffer from vision problems. The procedures are quick and affordable, and do not require lengthy hospital stays. With their vision restored, patients no longer have to cover the on-going expenses of purchasing contact lenses and eyeglasses.

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Source: http://articlelearn.net/the-benefits-of-laser-eye-surgery/

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