Laser vision correction

Laser vision correction

Laser vision correction or LASIK, which is a term that means modifying the shape of the cornea or the corneal layer by means of laser technology, and the idea of ​​this process began in 1970 in the form of a process known as corneal scraping, which is a process by which a cut or hole is made in more than one area. Or a part in the corneal layer, and that is in the hope of making a change in the shape of the cornea to become more regular, which contributes to correcting defects and problems of vision, and the results of this process were inaccurate, but in the year 1980 an important technological development and breakthrough occurred, as a technique was adopted Laser, as it is used accurately and calculated to correct visual problems and defects, such as: farsightedness, myopia, and astigmatism, and this method faced many obstacles and difficulties in the beginning, but it was finally approved as an approved technique for correcting vision defects by the Food Administration And the American medicine.

Laser vision correction mechanism

The idea of ​​correcting vision defects is based on the use of a specific type of laser known as excimer laser, where it is focused and focused on the corneal layer of the person whose vision is to be corrected, and this is done in an accurate manner to modify the shape of the cornea, as it reaches a position that causes it to break the laser beam on the corneal network directly This makes a person see things naturally without the necessity to wear eyeglasses, and the LASIK device corrects vision defects starting with the problem of myopia, in which the image falls and falls on the front side of the retina layer, and the farsightedness in which the image falls on the back side of the layer Retina, and astigmatism, which means that the layer of the cornea of ​​the eye reflects the laser beam entering it with a different force, and this in turn causes the presence of many images on the layer of the retina.

Conditions for laser vision correction

• That the person is at least 18 years old, and it is preferable that he is also over 21 years old.
• That the person’s eyesight be stable during the last two years of the operation, and this is done by following his glasses and measuring his vision during the last two years.
• The eye and its layers are free from germs and infections.
• The woman is not pregnant or breastfeeding.
• That the person’s examinations are sound, specifically the corneal imprint or the corneal image.

Duration of laser vision correction surgery

This process takes a period ranging from a quarter of an hour to a third of an hour for both eyes, but the period of time may increase if the treating surgeon is new and a beginner in this area.

The results of laser vision correction

The results of the operation cannot be judged from the first day, as the person who underwent the operation will face some confusion and difficulty in seeing, and this will be in the first hours of the operation, then this will end within forty-eight hours, and the results can be judged usually a week after the operation. Note that the results of the operation appear in some individuals after thirty or ninety days.