LASIK

LASIK stands for Laser assisted in situ keratomileuses. LASIK is a surgical procedure used to correct refractive errors such as myopia or more commonly known as short-sightedness.

How important is vision in one’s life?

Vision is ranked as the most valued sense a person holds. All the tasks we do, interactions we perform, and movements rely significantly on our vision. There is a popular saying that our eyes are the windows to the soul. Our sight is one of the five primary senses responsible for the information we absorb. The human eye is pretty extraordinary. It has more than 2 million moving parts and can move faster than any other muscle. But when it comes to vision, the way we perceive the world is actually the wonder of our brains. 

First, light enters the eye through the pupil. The muscles behind the iris squeeze and stretch the lens to focus the light onto the back of the eye. There is a retina on the back surface of the eyes. The retina is covered with sensitive photoreceptors called rods, for dim light and cones, for bright light. When stimulated, rods and cones send signals to the optic and back to the brain. Then, all of that visual information is processed to create the picture we see of the world. 

It is crucial to take care of our eyes in order to take care of our eyesight. Eyesight and vision are of the utmost importance in one’s life. Regular eye examinations, proper diet, protection of eyes from bright lights, and restriction of excessive use of gadgets can be helpful in maintaining good health of the eyes. 

What is LASIK, and why and how is it performed?

LASIK stands for Laser assisted in situ keratomileuses. LASIK is a surgical procedure used to correct refractive errors such as myopia or more commonly known as short-sightedness. It generally occurs when the eye is longer than usual, so distant light rays are focused to a point in front of the retina. This causes close objects to be seen clearly and distant objects to appear blurred. Heteromyopia or long-sightedness is the opposite of myopia; in this, the compact objects get blurred while the distant objects are seen clearly. Astigmatism occurs when the curvature of the cornea is unequal. In this, the objects at all distances appear blurred and distorted.

An excimer laser is used to change the cornea’s shape and thickness by precisely removing minute amounts of corneal tissues. In myopia, the central cornea is flattened to decrease its focusing or refractive power. Similarly, in hypermetropia, the cornea is actually steepened to increase its refracting or focusing power. The irregular cornea is smoothened out in astigmatism to even out its refractive power.

The cornea constitutes the outermost layer of our eyes. LASIK surgery smooths out irregularities and reshapes the cornea. First, the eye surgeon numbs the eyes with drops. Then the doctor uses a laser to make a flap in the cornea. A computer-controlled laser shoot pulses of light into the eyes that flattens or steepens the corneal curve. Finally, the surgeon replaces the flap, and your eyes begin to heal. Patients can experience blurry vision and light sensitivity for a few days after. It usually takes two to three months for the eyes to heal completely. 

Recovery after LASIK is really quick, which means a patient can return back to everyday life within a few days of the surgery. The only precaution doctors are more concerned about is that nothing dirty enters your eyes in the first week after the surgery. That is why some of the activities, like eye make-up, dusting and cleaning etc., are restricted post LASIK.

How effective is LASIK?

All patients who are above 18 years with stable refraction and no other complex eye disorders can undergo LASIK surgery. LASIK is one of the safest and most effective procedures that is done in ophthalmology. According to the observations, 96% of the patients achieve at least 20/20 vision, and 40% of patients achieve better than 20/20 vision. Studies on the surgery have proved that it is not only practical, but complications with the procedure and its results are extremely rare. 

Every surgery has some risks. The risks of LASIK include dry eyes, glare halos, night vision issues, and some ghost images. The majority of patients have those symptoms go away within a few weeks of their surgery. But suppose your pre-evaluation before the surgery is proper, and you are taking all post-operated precautions that your surgeon has advised you. In that case, the chances that you will have any complications or side effects are really small.

How can LASIK surgery change one’s life?

There are several people whose lives are changed after LASIK. There’s something different about seeing everything, from beautiful people you love or an eye-pleasing scenery unobstructed by your disability of vision. Being able to see the world through your own eyes without any disorder is life-changing, and LASIK has made it possible. LASIK is not some procedure that momentarily aids one’s ability to see. It changes how your eye’s cornea is shaped so you can see. And seeing the world on your own without needing anything to look through is a blessing with LASIK surgery. LASIK is, of course, not for every person, but for the patients eligible for LASIK, the surgery becomes a boon for them. 

LASIK: A way of making our lives better.

The aim of LASIK surgery is to decrease the dependency on wearing spectacle glasses or contact lenses. Many people who wear spectacle glasses find it very inconvenient for their daily activities, such as sporting activities. Also, people with a very high degree of myopia find that wearing glasses is very uncomfortable because they are cumbersome, and wearing them for prolonged hours generates discomfort. LASIK is a ten-minute procedure that is done with outcomes that are immediate and miraculous. LASIK has become a solution for many patients who face difficulties concentrating on their work, sports activities, or following their passion. Through the help of LASIK surgery, poor eyesight is no longer a hurdle in achieving what we want in our lives. 

LASIK
LASIK

Source: Sachin Tiwari (sachintwr362@gmail.com)

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