Lasik vision correction in modern ophthalmology is considered not only one of the most effective, but also painless procedures. The operation is very fast and does not require a long period for recovery. After it, the patient can go home in a few hours.
How is Lasik surgery done?
Before the patient is admitted to the operation by the laser method, he needs to undergo a comprehensive examination of the visual system, as well as pass some general tests as prescribed by the therapist. If there are no restrictions for vision correction, you can proceed to the procedure.
In time, the operation lasts from 1 to 2 minutes, preparation for it takes from 10 to 15 minutes. After local anesthesia and instillation of droplets that dilate the pupils, a specialist makes a microscopic incision, bends the cornea and directs a beam of laser beams to a selected place (determined by computer diagnostics), which eliminate the affected parts of the eye tissues. After completion of the process, the corneal flap returns to its original position.
As a rule, corneal tissue is regenerated within a few hours, however, for some patients, this may take a day. When conducting a laser vision operation, as well as during rehabilitation, a person does not experience uncomfortable sensations, since it is absolutely not traumatic. 1001 Optical Premium Glasses put together a complete guide to Lasik surgery for you.
Laser surgery to improve vision
In ophthalmic practice, there are a number of methods for carrying out the procedure with a laser device. In most cases, the patient chooses one of them for himself, after a detailed consultation with a doctor. Then they include:
During the operation, the outer layer of the cornea is not involved. Moisture evaporation occurs during bending of the eyelid, the laser device acts exclusively on the middle layers of the cornea. During the procedure, a minimum number of professional tools are used. The doctor takes a specialized device, capturing the edges of the eyelid and lifting it to the desired height in order to bend it and release the middle area of the cornea. After that, a laser is applied: the rays are directed to a zone predefined by the computer.
Pros of Laser Vision Surgery
In order to make an unambiguous decision on whether to conduct the procedure for correcting vision, the patient needs to know its pros and cons.
The positive aspects include:
- A short and painless recovery period, after which, following the recommendations of the doctor, repeated surgery is not required.
- An individual approach to each patient and the ability to eliminate even severe refractive anomalies (myopia, hyperopia, astigmatism);
- With minor visual impairment, almost everyone can afford such a procedure. In difficult cases, the price becomes much higher.
- Getting an excellent result in the shortest possible time without a difficult physical and psychological recovery period.
- High accuracy of the procedure and minimal trauma to the eye tissue, as during the laser vision operation, the rays of the device are under the complete control of a specialist whose actions the computer determines.
- Laser surgery can be performed on both one and both visual organs simultaneously.
- Low invasiveness of the procedure: the process involves small incisions without suturing, the operation is bloodless.
- The impact during the procedure is only on the cornea (its outer or middle layers), without touching or injuring other critical elements of the visual system.
- The most effective and lasting result in improving vision indicators is surgery in modern ophthalmology with minimal risk of complications.
Cons of laser vision correction
The negative aspects that impede the operation are much less; specialists warn patients about them in advance.
So, it is important to understand that the procedure will not be able to eliminate the cause and effect relationships, which are associated with significant visual impairment. If the nature of the problem is not timely revealed, the pathology will progress, which will reduce the effectiveness of the previously performed operation.
Among other things, if the patient does not follow the recommendations of the ophthalmologist, as well as continuously apply large loads on his eyesight, his sharpness may decrease. As a result, the effectiveness of the operation may decrease to zero. There are also cases when the ophthalmologist performs the operation too quickly, and the result does not completely satisfy the patient. Unfortunately, this situation can be corrected only by repeated vision correction with a laser after a certain period of time.
Restrictions on the operation
The operation to improve visual ability with the laser method can be performed not for all patients. There are a number of limitations, which include:
- Identification in a person of a severe degree of myopia (myopia).
- A significant difference in refractive indices of each of the visual organs (eye vision parameters should not differ more than 2.5 diopters).
- Progression of visual pathologies that are the result of diagnosed forms of diseases.
- The presence of keratoconus. The disease is characterized by the outflow of the cornea and a change in its contours.
- Age less than 18 years, which is associated with the formation of the visual system and irregular vision in children.
- The period of pregnancy and lactation, when the female body is subject to significant hormonal changes.
- The presence of pathologies that are chronic, allergic, and infectious in nature (for example, AIDS, psoriasis, neurodermatitis, eczema, etc.).
- Endocrine disorders in the body.
- Mental disorders.
- Cataracts and glaucoma, especially severe degrees, since surgery can worsen symptoms.
- A predisposition to the formation of scar tissue of the keloid type, since the procedure can lead to a decrease in visual ability.
Ophthalmologists argue that laser vision correction is better at the age of 18 to 40 years. After the last age limit, it can be dangerous, however, this is decided on an individual basis.
Possible consequences
In some cases, after the procedure, a person may experience prolonged healing of epithelial tissue, which is accompanied by minor pain, to preserve rehabilitation, doctors prescribe special drops for the eyes.
Various color and light anomalies may also occur due to poor lighting or reflection from mirror surfaces. After a while, with a strong vision loss after laser surgery, the patient will again have to use contact lenses or glasses.
Conclusion
Laser correction is the most optimal procedure for improving vision nowadays (the pros and cons are given above). With its help, patients will be able to forget about glasses and contact lenses and lead an active lifestyle without experiencing uncomfortable sensations. Remember that the procedure is absolutely painless, not traumatic, it does not require large financial investments if you do not have serious visual anomalies that need a special approach. But before deciding on it, it is necessary to consult a competent specialist and subsequently follow all the necessary recommendations.