How does laser correction of vision LASIK help to restore the vision?

The procedure for laser correction of vision under the name LASIK is performed around the world for about 20 years and today is one of the most popular operations in ophthalmology. The number of laser corrections in the world has reached 15 million operations, while the LASIK method itself is a highly accurate safe method of vision correction in patients with refractive errors (hyperopia, myopia, and astigmatism). The possibilities of vision correction using the LASIK technique are really impressive. Thus, the procedure allows to fully restoring vision in myopia to – 15 diopters, hypermetropia to +6 diopters, and astigmatism up to ± 3 diopters.

Lasik surgery does not require special training and is performed on an outpatient basis, hospitalization is not required. Correction of visual acuity in both eyes is performed in one day. The operation is painless, it is performed under local anesthesia (anesthetic is administered in the form of eye drops, injections or general anesthesia are not used). Just the day after performing the operation, the patient can return to his usual lifestyle.

The process of Lasik surgery

After installation of the anesthetic and the installation of the eyelid, the patient will need to focus the vision on the luminous point on the display of the device. This will help to center the position of the eye. With the help of it, a thin (not thicker than 130 – 150 microns) flap is detached on the surface of the cornea, one of whose sides remains attached. The resulting flap of the corneal tissue is bent, allowing the laser beams to act on deeper layers of the cornea. Using a laser, part of the corneal tissue evaporates, so that a new surface is formed. After this, the previously folded flap is placed in its place. It is fixed at the expense of its own substance of the cornea, collagen, therefore, no suturing after the LASIK operation is required. After the operation, the eyes are washed with a special solution, after which the patient is instilled with an anti-inflammatory drug to prevent the development of infectious complications. If it is necessary to perform a correction on the second eye, it is carried out immediately at a time.

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