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Lasik Surgery – the What, the Why and the Which

Apr 04, 2017

Lasik Surgery – the What, the Why and the Which

Lasik surgery is a refractive surgery that uses a laser to correct the common vision problems like Myopia (near sightedness), hyperopia (far sightedness) and astigmatism. Usually, a laser is used to correct the deformities in the cornea of the person to get rid of common vision problems. Most often, the Lasik surgery removes the need to wear eye-glasses or lenses in patients after the surgery.

Lasik surgery is known to be one of the most successful surgeries, and almost 96% of the times, all the vision problems are completely corrected. It is not at all time-consuming, and the effects can be seen on the same or the next day of the surgery. Since a laser is used, the surgery is not an open surgery and hence no cuts or stitches are made. Being a complex surgery that requires technical efficiency, some rare complications like corneal infections might occur. But the possibility of these complications is extremely low.

During the surgery, different types of laser devices are used to perform different kinds of processes. Some of them are given below.

  1. Excimer Lasers: these are the most fundamental types of lasers used the in the surgery as they are the one responsible for the actual correction in the cornea. The excimer laser emits a beam of ultraviolet light that can burn off the required amount of corneal tissue without damaging the surrounding area. This beam of ultraviolet light precisely cuts off the tissue and perfectly reshapes the cornea thereby correcting the individual’s vision.
  2. Femtosecond laser: the second type of laser used in the Lasik surgery is called the femtosecond laser. This laser emits a beam of infrared light and is used to cut the cornea, so that a flap can be created which once lifted reveals the middle of the cornea. The cornea is cut by creating a continuous series of tiny air bubbles and then it is lifted to expose the middle portion of the cornea, which will then be corrected using the excimer laser.

Disclaimer: The information given in this write-up is purely for educating the reader. It is not meant to be a substitute for any advice from a medical expert.

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