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How Does LASIK Work?

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How Does LASIK Work?

What is LASIK?

LASIK stands for Laser-Assisted In-Situ Keratomileusis. It is a common type of refractive eye surgery that is used to correct some common vision problems, including nearsightedness, farsightedness, and astigmatisms. LASIK involves reshaping the cornea with the use of a laser in order to correct or enhance common sight problems.

What is the LASIK Process Like?

The actual procedure does not take very long. The patient is usually completely finished with the entire visit in one or two hours, but the actual procedure only lasts around fifteen minutes.

First, the surgeon will use numbing drops in the patient’s eyes so they will not feel any pain. Once the drops are administered and begin working, the surgeon will use a bladed tool or a special type of laser to create a very precise, circular incision in the cornea. The goal is to create a small flap so the surgeon can work on the underlying side of the cornea.

Once the incision is made, the surgeon will gently pull back a portion of the cornea. Then, he uses a laser to remove some of the underlying tissue and reshapes the cornea. Nearsighted patients require a flatter shaped cornea while farsighted patient’s need a steeper shape. After the surgeon is finished, he will replace the cornea flap and the eye heals naturally without the need of stitches.

Dr. Choi Eye, which offers LASIK eye surgery, says, “The healing process does not take long at all. Common complaints afterward are watery eyes and a slight burning sensation. This feeling does not last long and the patient’s vision usually completely returns within forty-eight hours.”

Why LASIK Works

As mentioned above, the goal of LASIK is to reshape the cornea. The cornea is the clear, dome-shaped outer portion of the eye. It’s two main functions are to protect the eye from debris and to focus your vision. As light enters the cornea, it refracts the light onto the lens of the eye so the lens can then further focus the light onto the retina in order for the brain to process it. If the cornea and lens are not able to focus the light properly, it will result in blurry vision.

By changing the shape of the cornea, surgeons are able to help the patient’s eye refract the light more properly onto the lens so that their vision becomes more clear.