Lasik Eye Surgery

LASIK also known as laser-assisted in situ keratomileusis is a refractive surgery that corrects the different types of vision problems faced by individuals such as myopia, hyperopia and astigmatism, etc. In most cases today, LASIK surgery is seen as the most ideal way to get permanently rid of wearing glasses and lenses. Of all the refractive surgeries that exist, LASIK is seen as the most popular form of surgery with a remarkable 96% success rate.

A refractive surgery is meant to rectify the errors in one’s eye by reshaping the cornea to enable the light to properly enter the eye and ensure the light focuses on the retina. Patients who have undergone LASIK surgeries have testified it to be a painless procedure that gets completed in a matter of 15 minutes.

The goal of LASIK surgery differs depending on the problem area of the cornea. For example; for a nearsighted individual, the laser flattens the cornea with the removal of bits of tissue, and for a farsighted individual, the laser steepens the curve of the cornea and for an individual suffering from astigmatism, the laser smoothens the irregular cornea into shape.

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Before a LASIK surgery can take place, an eye examination is vital which is evaluated by the eye doctor. On understanding the shape, size and thickness, the ophthalmologist suggests the appropriate eye procedure. The different types of LASIK are

Wavefront-guided LASIK – an updated and advanced form of LASIK.

PRK (photorefractive keratectomy) – the first successful vision correction procedure to change the curvature of the cornea.

LASEK (laser epithelial keratomileusis) – similar to PRK yet in certain ways helps the eye heal faster.

The benefits of doing a laser eye surgery are numerous especially when looking for a long term solution. In most cases, people are gifted with a 20/20 vision for life and don’t need to depend on glasses or contact lenses to see well. LASIK is a popular surgery not only because of its many advantages but also helps improve the quality of life.

At the end of the LASIK eye surgery, the eye doctor examines the eye again to be assured of its health. The recovery period following the surgery is not more than a day. However, straining the eye by driving, cooking, etc must be avoided. A little rest for a lifetime without hassle. Consult your eye surgeon today and know more of how eligible you are for a LASIK surgery.

Are you Lasik eye surgery Candidate?

  • For performing Lasik eye surgery process:
  • You should be at least 18 years old, since the refraction of people younger than 18 usually continues to change
  • You should not be pregnant or nursing as these conditions might change the measured refraction of the eye
  • Your eyes must be healthy and your glass prescription stable. If you are myopic, you should postpone lasik eye surgery until your refraction has stabilized as myopia may continue to increase in some patients until their mid to late 20s
  • You should be in good general health

How does Lasik eye surgery work?

Lasik uses a laser to change the shape of the cornea.

In the myopic eye, the image does not reach the back part of the eye (the retina) as the cornea and lens are too curved and focus the image to a point in front of the retina and the image seen is blurred.

Lasik eye surgery procedure involves slight flattening of the cornea which is the curved rounded front surface of the eye; the image is then clearly focused on the retina.

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In the hyperopic eye the cornea and lens are too flat and focus the image to a point behind the retina; the image then seen is blurred. The muscles controlling the lens can overcome some degree of hyperopia but weaken with age. This is why many hyperopic cases begin to require distance and near glasses after the age of 30.

The vision after laser correction with Lasik, the cornea is slightly more curved; the image is then clearly focused on the retina. The result is that the hyperopic patient can see clearly for distance after sucessfully undergoing the lasik eye surgery treatment.

In astigmatism, the eye is oval like a bead, and not spherical. The image is formed at two different points inside the eye. This means that images of different orientations are focused at different parts of the eye and that the image on the retina is blurred.

In the treatment of astigmatism, irregularities in the shape of the cornea are smoothened to even out the focusing power.

(Disclaimer: Dr Nita Shah, Founder Director, Aayush Eye Clinic & Aayush Lasik Center. Views expressed are a personal opinion.)

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