Corrective surgery of eye of laser why you should keep your old glasses after the surgery
The surgery of Lasik is a very new surgery conceived to help of the people to improve their vision. During the surgery, the patients are completely conscious. The surgery can be recapitulated as follows: the first part of the surgery includes/understands reality cutting out an aileron in the cornea by the expert by using a devoted knife called the microkeratome or a devoted laser. The second part of the surgery implies to leave the pivot on a side of this aileron removed and replaced later.
During the process to remove the aileron, the expert transforms the stroma, the average part of the cornea. This is carried out by the means of a laser of excim�re used to remove additional and useless fabric without wounding essential shares.
Results
Many patients claim that their vision was improved immediately after the surgery while others recorded an improvement after a certain hour, not just after the surgery.
The lucky patients recorded a coefficient of improvement of 20/20 or even improve it after the surgery while others recorded worse results below 20/40. Although 20/40 is an acceptable result particularly some can lead with this level of the vision but this level is not certainly the perfect one lock up. These people use the monocle or always come into contact to correct their vision even if their regulation were lower than front.
Moreover, a phenomenon of regression was recorded on some patients after the surgery. This proves clearly that their vision becomes gradually worse and worse. In this case, the surgeons often count on improvements to improve the vision.
Presbyopia
Older patients, those above the years '40 can still find useful to carry glasses or bifocals for reading newspapers even if they underwent the surgery. The reason of this is a presbyopia which is tested at the age extending from 38 to 42. Presbyopia is characterized by the brittleness of the vision of distance thus making it very difficult to perceive the objects which are more close to the viewer.
Presbyopia occurs with ageing and can be improved with glasses. It is characterized by the loss of the capacity to change the target dynamically in order to see narrower objects. This indicated phenomenon in an erroneous way under the name of the farsightedness. However these two anomalies are different between them. Indeed, presbyopia is noted when the objective of the eye is not flexible while the farsightedness is noted after a twisted ocular sphere. This has like consequence an incorrect bending of the light after being entered the eye.
With the arrival of Lasik it is now possible to treat the anomaly of farsightedness because of the change of the shape of the cornea required by the surgery. Unfortunately at present, presbyopia cannot be treated by Lasik although the recent studies concentrate on the possibility to employ the surgery to treat the anomaly.
Astigmatism
This anomaly can be an side effect of the surgery. It is characterized by the incorrect approximation of the corneal surface which causes alternatively the incorrect centering of the correction of laser. It is reported that the astigmatism leads to the strange phenomena such as the scrambled vision, the double vision and the images of phantom. The glasses and an additional surgery can be a manner around these problems.
The result
Realistic hopes are required for this surgery. If somebody expects a perfect vision after the surgery, him or it can be disappointed as surgery is not perfect itself. Moreover, the patients should also take into account possible complications according to the surgery even if they are far from probable.
Another problem is the phenomenon of regression which was recorded in some patients after the surgery. Still this can be treated by glasses or an additional surgery.
Briefly speaking, you should remember that some sizes of sight are a common part of the process of ageing. Thus should consider to you that you could still need your old glasses after the surgery right if. In all this article we showed older people of some examples particularly undergoing the surgery and contracting presbyopia later. Presbyopia is a serious disease which must be addressed a little earlier than later.
