Laser correction of vision: the pros and cons of surgery

Myopia, hyperopia, astigmatism are the companions of modern people. Contact lenses and glasses correct eyesight, but wearing them is not always comfortable. Laser eye correction helps to completely cure eyes View. Pros and cons of this operation will be discussed in this article.

A bit of history

The operation is performed on the cornea, which has no blood vessels and therefore can be easily modeled. For the first time, correction became known in the 30s of the twentieth century: it was then called radial keratotomy. During the procedure, incisions were made on the cornea, which, when joined, changed the shape of the eye lens.

The effect depended on the rate of recovery of the patient's tissues. The technique has ceased to be used since the 80s, but it was she who became the progenitor of the technology "laser correction of vision," the pros and cons of which also depend on the individual characteristics of the person. Excimer laser - the precursor of modern correction - appeared in 1976.

How is surgery performed?

The procedure is performed under local anesthesia for fifteen minutes. The upper layer of the eye cornea bends, and the laser evaporates the "unnecessary" layers. Next, the bent cloth is put in place and fixed. Regeneration of the epithelium occurs within a few hours, a maximum of a day (each person has his own recovery features).

Laser vision correction: the pros and cons

As with any operation, this procedure has advantageous advantages and minor drawbacks. The merits include:

• Shortened rehabilitation period (1-2 days);
• Absence of hospitalization;
• Restoration of acute vision in a few days;
• Safe depth of impact;
• Return vision to patients with astigmatism, myopia, farsightedness of any stage.

Laser vision correction: limitations

When performing this operation, some features are taken into account, in which the use of a laser is not recommended:

• Pregnancy, breast-feeding;
• Presence of serious chronic diseases (diabetes, psoriasis, AIDS, asthma, neurodermatitis, eczema);
• mental disorders;
• Some eye diseases (eg, glaucoma, cataracts);
• Alcoholism, drug addiction;
• Individual tendency to the appearance of keloid scars;
• A small thickness of the cornea.

To make laser correction of sight it is necessary in the age period from majority (18 years) to 40 years. Until the age of 18, eye tissues are not yet fully formed, and later, age-long farsightedness may occur, which can not be corrected.

Minuses:

• The operation does not eliminate the reason why vision has fallen;
• Possible under-correction;
• The visual acuity in case of excessive load may decrease again.

Millions of people wear correction aids (glasses, lenses, etc.), many want to get rid of them forever. Only laser correction of vision, whose advantages and disadvantages we have considered above, is capable of restoring vision completely or partially. To be sure of success, you need to choose a good clinic, an experienced specialist, get acquainted with the reviews of the operations performed, and, of course, completely pass the prescribed examination.