Bulan: Februari 2008

Although popularly we know it as lasik eye surgery it is also known as refractive this surgery or vision repair surgery. The last name describes the surgery best as it actually repairs one’s vision. What does is that it reshapes your cornea thereby allowing you to have normal vision without any external aid like glasses or contact lens. And recently there has been a lot of advancement in the field of this operation.They has been embraced by many a patient over the last decade to correct some specific eye defects. It has caught the imagination of people and has been gaining popularity every year. But this surgery does have its own effects and it varies from one patient to another. So before you actually decide on getting an operation done, you should always consider the pros and the cons.Basically this is used to cure three main types of eye conditions – myopia, hyperopia and astigmatism. Myopia, also know as nearsightedness is the problem of not being able to see what is far away without glasses. Hyperopia, also known as farsightedness, is the other way round. Astigmatism is something different where the patient has irregularities in his cornea which as a result distorts the image formed on the retina of the eye. After this surgery the need for glasses or contact lens will either be negated, or your dependency on them will be significantly reduced.But eye operation comes with its own set of risks and they should always be considered seriously before you actually sign-up for an operation. First of all, you will not be eligible for the operation if you are suffering from diabetes, glaucoma, cataracts, arthritis, and lupus. Even pregnant women are not eligible. With these conditions, undergoing surgery can cause permanent damage to your vision. Other problems that might be caused due to surgery are double vision, glare, and halo. One’s nighttime vision can also be affected, especially for certain operation procedures. Even permanent blurry vision and diminished contrast may be the effects of the surgery. We are not trying to imply that surgery is something that involves a lot of risks. All that we are saying is that you should properly educate yourself about the risks also so that you can take a considered decision.Some patients experience discomfort in the first 24-48 hours after surgery. Other side effects, although rare, may include:Glare, Seeing halos around images, Difficulty driving at night, Fluctuating vision, Dry eyes. The FDA has found no long-term side effects from laser eye surgery.Lasik surgery is too new to know if there are any long-term ill effects beyond five years after surgery.Before the surgery, your surgeon should explain to you the risks and possible complications, and potential side effects, including the pros and cons of having one or both eyes done on the same day. This is the “informed consent” process. If you experience aggravating or unusual side effects, report them to your doctor immediately.

Opting for the right LASIK surgery to correct your vision today is not the same as it was a decade ago. This is comparatively a recent medical breakthrough. It was only in 1994 that the first eye surgery was performed. Back then surgeons didn’t have much option on how to go about the entire procedure. All they had was a microkeratome, a small mechanical blade which helped to create a flap on the cornea. Once the flap was created, conventional excimer laser was used for reshaping the tissue underneath. That would allow the cornea to focus light directly on the retina exactly as it happens in a normal eye. This is all the option that an optometrist had about a decade ago. Since the this surgery has gone through a sea change and amazing advancements have been made in the technology that is being used. Lasers have become much smoother and precise which has allowed patients to have better vision than they could have ever imagined before. One of the newest addition to this opertation technology is the machine called Intralase. This machine makes the metal blade redundant during a operation. Here flap creation is also done with the help of laser. So with the help of Intralase one can actually complete the entire surgery only using lasers. This makes the operation an all-laser surgery .The greatest USP of Intralase is that it significantly reduces the risks of flap complications. When one is using the microkeratome to create the flap on the cornea there are risks of complications. These would include a flap being cut too thin, that the flap can tear, or may be it will not cut completely. Once you start using Intralase, such possibilities are almost done away with. As the level of accuracy increases with the use of Intralase, the cases of re-operation also drop. That way it is a much safer option compared to microkeratome. But it must be understood that Intralase is not completely risk free. Flap related wrinkles and other similar problems are still a possibility eve with Intralase around. But it is also true that Intralase will bring down the actual cases of complications. There are detractors to Intralase whose man line of argument would be that it is too new a method to jump to conclusions and that there is no substantial evidence that prior risks are negated. Also Intralase increases the length of an operation thereby increasing the opportunity for other complications to be introduced.

Any surgery has its own sets of risks and complications. So it is advisable that before going into a surgery a patient should have a clear and complete knowledge of what the operation involves. It is generally the surgeon who explains beforehand what the patient might expect prior to and after the operation. Even the process of operation is at times explained, albeit in a lucid and easy to understand manner. It should be no else with this surgery also.Why would one go for LASIK surgery? Primarily because it is generally accepted these days that that surgery comes with the promise of improving one’s vision permanently so that the need for glasses or contact lenses is no longer there. So you are no longer dependent on them. In a way, you discover new liberty and freedom.So whom do you go to for a LASIK surgery? To the optometrist, of course. The first thing he will do is to conduct a number of tests on you to see if you are the right candidate for this surgery. Basically this eye surgery is used to cure three main types of eye conditions myopia, hyperopia and astigmatism. Myopia, also know as nearsightedness is the problem of not being able to see what is far away without glasses. Hyperopia, also known as farsightedness, is the other way round. Astigmatism is something different where the patient has irregularities in his cornea which as a result distorts the image formed on the retina of the eye.What will the optometrist be looking for? There are a few basic things that any optometrist will look for before a eye surgery. That would primarily include your eye health history. In case of a particular few diseases the chances of you undergoing a this surgery will significantly decrease. These would include glaucoma, herpes, eye injuries or thin corneas. Any of these conditions can disqualify you as a suitable candidate for eye surgery. Another important criterion is whether there has been an alteration in your eyewear prescription over the last year. Before this operation your eyes should be steady. If they are not then the optometrist might just postpone the surgery for a few months until he is satisfied that your eyes are ready to undergo that surgery.These are some of the basic things that you need to know as part of your pre-surgery preparation. Of course once you are considered suitable for the operation the doctor will brief you about the surgery itself and post operative care.