anesthesia Prickles and excitement of patients before laser correction is a very common phenomenon, so many people are interested in what kind of anesthesia is used, how painful it is to carry out the correction and whether it can be done in a dream. Anesthesia for laser vision correction is used locally in the form of special drops.
To ensure the accuracy of the correction procedure, the patient must be conscious to ensure the most accurate concentration during laser operation. In the case of general anesthesia, the center may be disturbed, since the geometric center of the pupil does not always coincide with the light glare on the cornea.
What kind of anesthesia is used for laser correction
For laser vision correction, local drip anesthesia is used. This choice is primarily due to the duration of the procedure, which takes no more than 10 minutes. The direct effect of the laser on the cornea, depending on the chosen technique, is from 25 to 50 seconds. The use of general anesthesia, which has a negative impact on the central nervous and cardiovascular systems, is absolutely unjustified.
Laser vision correction under general anesthesia is performed in exceptional cases, when it is difficult for the patient to concentrate on the period of laser exposure due to individual characteristics of the body or concomitant systemic diseases.
Why is general anesthesia not used?
During laser correction, local anesthesia is used to eliminate unpleasant sensations during the operation. Next, a special eye lock is installed to prevent blinking. At this time, the patient is in close proximity to the surgeon, can hear the doctor’s recommendations and remain calm.
To ensure accurate laser centering, a special light is used, on which you need to focus your attention for the period of laser exposure. This process does not cause any unpleasant sensations. At first, the light is clearly visible, and by the end of the procedure it becomes slightly blurred, but for 10-15 seconds it is not difficult to continue looking in the specified direction at the light. Immediately after the correction, the visual function is weakened, there is a fog in front of the eyes, but there is a doctor nearby with whom you can talk, get answers and remain calm, distracted by conversations.
If the patient is under anesthesia, the work of the ophthalmologist is complicated at times, and accurate centering is not guaranteed, which in the end will affect the quality of correction. Correction under anesthesia is especially complicated if the patient has astigmatism. Centering on anatomical landmarks does not give an accurate result, so you need to remain calm and for a short time no more than 1 minute to suffer a correction procedure that does not have any painful sensations. To cope with fear and panic, a doctor may recommend safe sedatives.
General anesthesia only for medical reasons
Despite the fact that laser correction is preferable to do under local anesthesia, there are always exceptions. If vision correction is planned, it is up to the ophthalmologist to decide under what anesthesia the procedure will be performed, who will take into account the characteristics of the patient’s body, his physical abilities and readiness to lie still for a minute.
So general anesthesia can be used for patients who have serious problems with the spine, which makes it impossible to take a supine position and relax the muscles properly. Also, under general anesthesia, vision correction is performed for children or older people who cannot concentrate on the light. For children, laser correction is performed extremely rarely on a strict doctor’s prescription only in cases where the benefits of the operation exceed the risks of complications without correction.
According to statistics, only 2-3 cases of laser correction out of 1000 require the use of general anesthesia, when the patient has disorders of the musculoskeletal system and he can not physically lie still. Thus, only for strict medical reasons, anesthesia is acceptable, but the accuracy and quality of correction decreases.
If the patient is healthy, but just afraid of the procedure, you need to pull yourself together and be patient for a minute, since laser correction is an absolutely safe procedure. Do not believe in myths, be afraid of terrible pain during correction or be afraid of burns, since all this has nothing to do with reality. The laser used for correction is safe for the eye, does not heat the tissues and is controlled by a computer.