The term LASIK is an abbreviation for Laser InSitu Keratomileusis. LASIK is a surgical procedure whereby a laser is used under a corneal flap (in situ) to improve the corneal surface and curvature. During the LASIK eye surgery procedure, the medical professional utilizes an exactly configured laser (called the excimer laser) developed to deal with refractive eye problems like near-sightedness, farsightedness and astigmatism, as well as improve vision by removing or reducing these refractive errors. LASIK has been made use of by physicians throughout the USA for more than twenty years now as well as is commonly accepted for dealing with refractive errors of the type mentioned above.
How does LASIK work?
At the initial stage of the LASIK procedure, a LASIK eye surgeon first develops a precise, thin, hinged corneal flap. The eye surgeon then raises back this corneal flap to reveal the underlying corneal cells or tissue, and afterwards using a laser, he or she ablates (reshapes) the cornea using a special pattern for every patient to correct refractive errors. The doctor after that delicately rearranges the flap onto the underlying cornea and the cornea will heal itself without any stitches. As the LASIK procedure does not need stitches, the patient recuperates quickly and can see well within a few days of the procedure.
What is refractive error?
The front roundish shaped, clear surface of the eye is called the cornea. The cornea as well as the lens inside the eye in conjunction with each other allow the human eye to focus inbound light rays onto the surface of the retina to give sharp images. By way of example, this process is similar to exactly how a video camera focuses light onto the movie film inside. Occasionally, there is a mismatch between the power of the cornea and also the size of the eye, this is called refractive error. In the human eye, refractive error causes an obscured image.
What are the key sorts of refractive errors?
We have all listened to the terms near-sightedness as well as farsightedness, however, you might not have actually thought of those conditions as refractive errors.
Near-sightedness, the technical term for which is Myopia, occurs when the refractive error in the human eye causes distant objects to be blurred, while objects closer to the eye are clearer.
Farsightedness, the technological term for which is Hyperopia, produces the opposite result, specifically, near objects are blurry, while distant objects are clearer.
Your ophthalmologist or eye doctor may additionally have actually mentioned the term Astigmatism in defining your refractive error. Astigmatism is a distortion in the shape of the cornea or lens, which results in objects being blurred at all distances, as well as astigmatism often happens in conjunction with near-sightedness or farsightedness.
LASIK and various other kinds of refractive surgery are planned to fix the eye’s refractive error to decrease the need for glasses or contact lenses.
By correcting refractive errors such as near-sightedness, farsightedness and astigmatism, LASIK reduces the need for glasses or contact lenses.