Refractive Error Correction - Lasik Eye Correction Surgery

Refractive Error Correction - Lasik Eye Correction Surgery

A refractive error is an error in the focusing of light by the eye and a frequent reason for reduced visual acuity. There are normally three main types of refractive errors: Myopia(nearsightedness), hyperopia(farsightedness) and astigmatism. Myopia is a refractive defect of the eye in which collimated light produces image focus in front of the retina when accommodation is relaxed; hyperopia is a defect of vision caused by an imperfection in the eye, causing difficulty focusing on near objects; astigmatism is eye condition where rays that propagate in two perpendicular planes have different foci. All of the three errors are caused by the out of shaped cornea of the eye. Therefore, based on the cause, researchers work out an effective way to correct those errors: Lasik Eye Correction Surgery.

Lasik accomplishes to correct vision with the help of a laser controlled by a computer. The surgeon would first create a tiny flap on the cornea, and then with the flap lifted, the surgeon apply the laser to remodel the cornea into a normal shape. Finally, the flap will be repositioned. The procedure is simple which can be completed in 10 minutes. Therefore, many people would like to ask for a Lasik to correct their vision so that they would abandon the restriction and trouble brought by eyeglasses and contact lenses.

Nevertheless, the patients concerned should bear in mind that not everyone is suitable to get a Lasik eye surgery. To make sure whether you are qualified, you are required to take a pre-examination on eyes. The eye doctor will determine your qualification according to your examination result. People having bad health condition and eye diseases and women in pregnant are not thought to be good candidates for Lasik.

Even you are told that you can undergo a Lasik, you should know that you may experience some risks after the surgery, such as dry eyes, eye infections and blur vision, etc.. A loss of vision is possible when some accidents come along the procedures. That is to say, do not take it for granted that Lasik would bring back your clear vision definitely, it would also bring your potential risks. Therefore, before making a decision to get vision corrected by Lasik, you should think carefully.

But then, up to now, it is reported that the success rate of Lasik comes to nearly 95%, therefore, there are great chances for one to successfully restore clear vision with the help of Lasik.

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Details of a typical laser eye surgery

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