Nearsightedness belongs to one of the most frequent problems of the eye. Those who suffer from myopia try to improve their vision by blinking, and the name of this disease in Latin means winking. The reason for nearsightedness is usually a too long axis of the eyeball or the refraction disorientation of the eye, but it can happen that the patient experiences both problems at the same time. The refracting myopia is caused mainly by the too convex cornea, but a cause can also be the shape alteration or shifting of the eye lens. Nearsightedness may also be caused by the variation of sugar level. The axis myopia is caused by excessive growth of the eyeball, this refraction glitch is usually inherited by grandchildren from their grandparents. Those with myopia see nearby objects clearly but distant objects appear blurred and their eyes do not have to adapt, and thus the muscles which are not used weaken and squinting may also occur.
Nearsightedness may be treated or improved by several ways, the vision may be improved by glasses or contact lenses, but there also exist different surgeries and among them the laser correction. This treatment is advised for those patients who have difficulty wearing contact lenses or they can not wear glasses or contact lenses due to their profession. In cases of different eye diseases the laser correction of nearsightedness may be a solution, but psychic problems can also be treated with this operation.
Excimer laser is used to remove layers from the center of your cornea to flatten its domed shape in order to reduce the eye’s refraction. The change of the eye’s total diopter is done by correction of refraction of the cornea. The site of the surgery can be accessed easily and possesses the most refraction of the eye. During the excimer laser treatment the laser radiation is well absorbed by biological matter and organic compounds and adds enough energy to disrupt the molecular bonds of the surface tissue, which effectively disintegrates into the air in a tightly controlled manner through ablation.
Before the operation which lasts only a couple of minutes a series of drops will be placed into the eye of the patient in order to get them ready for the treatment, which will lightly numb the cornea of the eye and the patient will not feel any pain during the surgery. After the procedure the patient receives pain-killer eye drops and a bandage will be placed over the eye.
Following the surgery the patient may fell mild stinging pain in the first two-three days until the cornea starts to heal. It is advisable to pay attention to the eye so that it does not contaminate, and swimming pool, dust and pets should be avoided. Next to regular check-ups the patient has to take antibiotics for about a week, and the usage of inflammation and scar retardant drops is advised in a month after the operation. The full recovery takes approximately two-three months, but the eye has to be protected even after this period of time from UV radiation, and wearing sunglasses are advised.
The excimer laser treatment is not advised for everyone. Under 18 years of age when the eye is still in the growing period the surgery can not be done, as well as in cases of instable refraction glitch or connective tissue abnormalities. The aged condition of the cornea, a serious lack of tears or any other chronic disease, for example sugar level problems and scar healing disorder may be an obstacle for this laser operation.
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