An Introduction to LASIK
History of LASIK
Over the years, especially in the second half of the 20th century, were made rapid progress in the field of ophthalmology. Previous eye surgery was a complex process that invasive surgery and long payback periods. The invention of the laser has changed everything. Its use in a variety of fields including eye surgery, as well.
Although LASIK itself was developed in 1990 by Dr. IoannisPallikaris of Greece and Dr. Lucio Buratto of Italy, the concept of LASIK itself has been formulated in 1970. This year, Dr. Jose Barraquer microkeratome came out with the first officer. A microkeratome is a device used for the shape of the cornea, a central component of the eye, changing the valves thin. This process has been like keratomileusis. Keratomileusis is a procedure to correct the refraction of the cornea. This was achieved by removing a deep corneal lamella, freezingit, changing its curvature in a new, and then replaces it.
LASIK is the acronym for surgery of the cornea – Laser-Assisted In Situ Keratomileusis. This procedure has been appointed jointly by the two doctors through the merger of the two techniques – keratomileusis, which I developed previously described, and keratectomy. LASIK is now very far, because two important reasons for use:
• Accuracy better than othersprevious corrective measures, that the eye or cornea.
• fewer complications with other existing techniques of his time over.
In the United States, had performed the original LASIK surgery by Dr. Stephen Brint and Dr. Stephen Blade in 1991. In Germany, the first LASIK surgery in 1991, is still Neuhann by Dr. Tobias and Dr. Thomas with a lance automated.
As a side note, there is also the LASIK procedure of hair removal. This isProceed with the extra hair anywhere in the body can be removed by destroying the root of the hair follicle.
The LASIK procedure
LASIK is performed in two phases:
• The first operational phase
• The operation itself
During the pre-operative will ask that you contact lenses that can not take them for a period ranging from one week to 10 days. Initial investigations of the cornea of the patient be made to recognizeIrregularities in shape of the cornea, such as astigmatism. The test is performed with a computer scanner that shooting low-power laser to create a map of the cornea, the person. The surgeon prepares the coordinates for the surgery – the amount of cornea removed, the position of the fabric so that the patient is also recommended to use a mild antibiotic to reduce the probability of getting infected cornea to reduce post-surgery LASIK.
At the beginning of operation,Patients are given local anesthesia in the form of eye drops book. The patient is usually awake during the procedure, but may be given a sedative. The first cut is with a microkeratome or a femtosecond laser and cut a flap in the cornea to the place designated. Here the flap is folded back to expose the stroma, the middle part of the cornea. First, an excimer laser is used to align the new stroma.
WholeThe position of the eye is caught by a computer with a speed of 4,000 times per second.
LASIK Eye Surgery Complications
While LASIK has its advantages, has some side effects as well. LASIK surgeons have complications, which can be made of LASIK treatment, when it is too often seen.
After LASIK surgery, a patient may be a meetingFollowing:
• Halo / starburst near sources of light
• Visual acuity fluctuation
• Under / Over correction
• Double vision
• corneal flap striae or wrinkles
• The erosion of the epithelium
• induced astigmatism
• Light sensitivity
• Decentralized ablation
Several LASIK procedure
The popularity of LASIK as a surgical procedure, the proliferation of all LASIK centers in the United States guaranteedStates. It is probably LASIK center just around the corner! Different centers use different LASIK procedure LASIK. In this section we will see some of the procedures on offer in different parts of the United States to take, and also look at some newer procedures that are used today.
Conventional LASIK: This is the traditional method to perform LASIK with the corneal flap is cut with a knife or a microkeratome. While this process has itsAdvantages, disadvantages are the possibility of flap related complications, such as:
• Flip-Flap
• Displaced Flap
• Slipped flap
• diffuse lamellar keratitis
• Epithelial ingrowth
Bladeless LASIK: This involves taking the intersection with another laser, a femtosecond laser or IntraLase. This minimizes the risk of complications that can arise from a USNG LASIK microkeratome.
LASEK Eye Surgery: LaserEpithelial keratomileusis (LASEK) is a variation on the traditional LASIK. It is implemented by a LASIK surgeon on a patient whose cornea is too thin for LASIK performed. A solution of alcohol is used to facilitate the removal of the epithelium. The disadvantage is that it involves a longer recovery than traditional techniques of LASIK with them.
Epi-LASIK: Epithelial Laser in situ keratomileusis (Epi-LASIK) is a different type of LASIK procedureThe best of LASIK, PRK and LASEK trying to bring. Epi-LASIK cuts the complications which may be a result of LASIK, and also allows the patient a recovery time than PRK or LASEK.
WaveFront LASIK or Custom Wavefront: Wavefront LASIK or Custom Wavefront LASIK is a procedure that provides high-precision adjustments defects of the cornea are available. The degree of accuracy is many times stronger than that caused by conventional lenses or LASIK. Thisis possible because Wavefront LASIK uses three dimensional measurements of the imaging capabilities of the human eye, in order to arrange the laser, the assistance of the new cornea for corneal defects eliminated.
With the advent of Wavefront LASIK, you can see the quality of their vision regarding the situation in which things are better in different circumstances, not the rule. It improves contrast sensitivity of the eye. Studies show thatincreased contrast sensitivity in almost two times higher than with LASIK.
Although it is difficult to determine, identify which of these is the best LASIK procedure, the sensuous, what to do, that each method has its advantages and is suitable for individual situations and scenarios. With all of the centers of vision of LASIK for the different types of LASIK procedure you have the luxury of making comparisons between different options in terms of usability, price, etc.Then select the method that best suits your needs best.
References
• http://www.allaboutvision.com/visionsurgery/
• http://www.globallaservision.com
• http://www.seewithlasik.com
• http://www.answers.com/topic/lasik?method=6