The first preoperative procedure is to stop using any form of contact lenses for at least two to four weeks prior to the corneal measurements. In other words, it is advisable to remove contact lenses at least two weeks before the actual surgery. This will enable the cornea or corneas to stay with a fixed shape. A stable corneal shape will maximize the success rate of corneal reshaping during LASIK procedure. One week before the surgery, it is the time to take vitamin C in a dose of approximately 500 mg every day. Doing this is thought to reduce potential complications including halos and haze. During the prior consultation with a surgeon, a patient should be honest about any health problems such as diabetes, autoimmune disorders, neurological conditions, hormone therapy and steroid use. Another aspect is to stop using some other decorative things, such as makeup, lotions, perfume and the like. These things may damage the vulnerable eyes because of the chemical substances they contain.

Those preoperative procedures are an inseparable part of LASIK surgery, if a successful outcome and fast recovery are reasonably expected.

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Generally, in both of the two surgeries, patients will seldom feel any pain; some medications are needed after the surgery; it will take some time to recover; some common eye diseases can be cured by them, such as nearsightedness, astigmatism, etc.

As for the success rate, both of the two forms are very ideal and receivers can always get their perfect vision after the surgery. However, there are some differences in the operating process. For instance, sufferers of particular eye problems have to receive PRK only. Receivers of PRK will have to wear some special devices for some time. In the process of LASIK, a flap will be made. And the recovery time varies, too. There is no difference in their outcomes and the only point is one should find the form that suits him most. Therefore, one is suggested to consult with a well-experienced surgeon before taking the surgery.

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Until now, corrective eyeglasses and contact lenses remain as the majority in the realm of vision correction for common refractive errors. While offering their respective advantages, both eyeglasses and contact lenses do have disadvantages. The commonest shortcoming of contact lenses is try eye. Some contact lenses wearers forget to blink their eyes on a regular basis. There are still certain wearers who spend consecutive hours in front of a computer. In these cases, dry eye is very likely to occur.

Eyeglasses mean extra weight on the bridge of the nose. Even if there are available lightweight glasses, additional burden to the nose still exist more or less. This disadvantage may deprive wearers from being comfortable. Eyeglasses and contact lenses will often prevent wearers from participating in fierce activities such as swimming, diving and so on. During these recreational activities, spectacles and contact lenses are a hassle. What’s more, wearing eyeglasses or contact lenses may still affect family life. Parents wearing glasses or contacts are always concerned that their mischievous kids would break their eyeglasses or pull out their contact lenses.

A third treatment for common vision problems is LASIK eye surgery. This completely different solution can eliminate all of these disadvantages that are associated with eyeglasses and contact lenses mentioned before. LASIK procedure offers a permanent option and makes corrective eyeglasses and contact lenses needless.

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As the case stands, either positive review or negative review depends on who you ask and no answer is authoritative and in full range for the reason that massive majority of all the LASIK reviews are not only positive but improve a person’s quality of life.

People having positive opinions describe LASIK to be wonderful, because having 20/20 vision is just a dream for most Americans who wear glasses. A LASIK surgery makes them no longer have to fumble around for their glasses or contact lenses, and they are able to lead a life as before when they were in good eyesight. The experience of consistent pushing up the glasses on noses and wearing and taking off contacts everyday has gone.

Although LASIK wins a large outpouring of favorable comments, certain amount of risks concerning LASIK are involved and some people give not so good comments. But they just list some events but never describe in details and seldom offer advices. Therefore, as a reporter, I’d like to read more negative reviews and look into some complaints. And if they are truly a problem I will report to the Better Business Bureau (BBB) for solution.

The good news is that majority of the reviews from both the patients and doctor are positive, which demonstrates that LASIK surgery, as a newly emerged in modern times, indeed serves us a lot.

The procedure of LASIK eye surgery mainly consists of three steps. The first step is to make a flap of the outer layer of cornea. There are two types of blades that can be used to cut a flap, the mechanical blade called microkeratome and the laser called keratome. The second step is to reshape the inner layer of cornea using an excimer laser. The last step is to replace the flap which is made in the first step.

There have been five instruments that used during the procedure of LASIK eye surgery have been approved by the FDA from the year 2000 to 2006.

The MEL 80 Excimer Laser System manufactured by Carl Zeiss Inc using a laser that cuts at the wavelength of 193 nanometers was approved on August 11, 2006.

The LASIK Eye Drape was developed to help protect both the patient and the surgeon by Odyssey Medical Inc. And this new style of drape was approval by FDA on May 10, 2005.

Alcon Laboratories Inc had two FDA approved instruments. The first one was approved on October 7^th of 2003, which was used for their Wavelight Allegretto Wave Excimer Laser System. And the second was approved on October 10, 2003, which was used for the ophthalmic medical laser system that cuts at 193 nanometers.

Technolas 217A Excimer Laser System of Technolas GMBH Perfect Vision was approved as a class 3 medical device by FDA on February 23, 2000.

Above are the five FDA approved instruments used for the many LASIK surgeries in the United States. Check with your eye surgeon to see what he will use for you.

reference

·Categories of Laser Eye Surgery