- by Dr Alok B S
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- Jun 12 2017
Refractive- Lasik Surgery -What is it?
Refractive surgery is a method for improving or correcting your vision if you have a refractive error, such as farsightedness (hyperopia), nearsightedness (myopia), presbyopia or astigmatism. There are different surgical methods for altering or adjusting your eye's focusing capacity by reshaping the cornea, or clear, round mound at the front of your eye. Other methods involve implanting a lens inside your eye. The most widely executed type of refractive surgery is LASIK (laser-facilitated in situ keratomileusis), where a laser is used to correct the cornea.
For individuals who are nearsighted, established refractive surgery procedures will lower the curve of a cornea that is too sharp so that the eye's focusing power is reduced. Pictures that are fixed in front of the retina, due to a longer eye or sharp corneal curve, are pushed nearer to or directly onto the retina after surgery.
Farsighted people will have refractive surgery techniques that accomplish a sharper cornea to extend the eye's focusing power. Due to flat or uniform cornea or a short eye, images that are fixed beyond the retina, will be drawn closer to or straight onto the retina after surgery.
Astigmatism (a deformity in the bend of your cornea) can be rectified with refractive surgery procedures that particularly reshape parts of an irregular cornea to make it symmetrical and smooth. The out- come is that images focus distinctly on the retina rather than being deformed due to light dispersing through an unevenly shaped cornea.
Refractive Surgery may be a suitable choice for you if you:
Want to reduce your dependency on contact lenses or glasses;
Do not have any eye disorders;
Accept the fundamental risks and possible side effects of the procedure;
Understand that you could still need contacts or glasses after the procedure to acquire your best vision;
Have a suitable refractive flaw.
There is no globally-accepted, best procedure for correcting refractive flaws. The best choice for you should be determined after a rigorous evaluation and discussion with your eye specialist. If you are bearing in mind refractive surgery, you and your Eye specialist can consider your lifestyle and vision needs to decide the most suitable method for you.
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