What is refractive surgery?

Refractive surgery

For some years, people with vision problems have been able to resort to refractive surgery to correct them and eliminate glasses or contact lenses forever. Refractive surgery consists of a group of interventions or surgical techniques by which certain problems that cause vision alterations are corrected or eliminated. For example, myopia, astigmatism, hyperopia and even today presbyopia can also be corrected.

A whole help for people who want, want or need to stop wearing glasses, either for professional, sports or simply aesthetic reasons. Because glasses are a very nice, fun accessory that even adds personality to the face, but for all of us who must wear them every day, they are nothing more than a reminder that without them, we are lost.

Refractive surgery

There are different types of refractive surgery to correct vision problems. In each case, it will be the specialist who determines which is the most appropriate and even more than one technique can be applied at the same time in the same person. Next we tell you what are the types of refractive surgery, when they are used and how the technique is performed.

Laser refractive surgery, LASIK or PKR

When the laser is used to correct the alterations of the eye that cause vision problems, what it is about is to modify the shape of the cornea so that the diopters that prevent correct vision can be corrected. Shape may vary depending on graduation of each patient, for example, when the LASIK technique is used, the following interventions are performed.

  • To correct myopia: what is done is to flatten the curvature with the laser, so the light is correctly focused on the cornea.
  • In the case of hyperopia: In this case, the edges of the cornea are molded to create a curve.
  • for astigmatism, what is done is to flatten the area with the greatest curve of the cornea to leave it as uniform as possible.

In the case of so-called PKR refractive surgery, the technique it is similar but it is usually more annoying for the patient. It was the first technique used to correct vision problems, so today it has been greatly improved and is therefore no longer used as frequently.

An intraocular lens can also be used

In some cases, instead of using the laser to modify the cornea and improve vision, a lens can be implanted or the lens can be removed, depending on the needs of each patient. This is the technique that is usually used when the patient has more diopters than allowed to perform refractive laser surgery. In the case of lens implantation, the lens is maintained. In other cases, the lens is removed and an aphakic lens is implanted, which is the technique used to remove cataracts.

How do I know if I can have surgery?

To be able to perform refractive surgery in the case of needing to correct vision defects, such as myopia, astigmatism or hyperopia, the patient must meet certain parameters. On the one hand, graduation must be stable for at least two years. Other safety parameters that must be assessed by the specialist in each case are also assessed.

The best way to solve all your doubts is to go to the consultation of a specialist who can carry out a review and explain your options. Since there are many parameters that are evaluated in each case, the needs of each patient and the probability of obtaining the desired result may also vary in each case. Besides, Although it is a very safe surgery, it is not without side effects. which should also be valued. Always put yourself in good hands, resolve all doubts. Leave some time in which you can reflect and decide when, how and with whom you want to have surgery to eliminate vision problems forever.


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