Laser vision correction

Laser vision correction has become one of the most popular and effective methods for eliminating various types of visual defects. The absence of frames and contact lenses, the ability to see clearly without the aid of assistive devices - all this makes laser correction the most attractive option for many people with nearsightedness. nearsightedness, farsightedness, astigmatism and other vision problems.

Laser eye surgery uses advanced technology to precisely and safely reshape the cornea. This is necessary to correct refraction and thereby improve the quality of vision. The surgery is performed using a highly precise laser to correct eye tissue with minimal risk and complications for the patient.

However, given the specific nature and cost of such an operation, it would certainly be useful for many people with ophthalmic diseases to learn about the possible benefits and risks associated withthis trick. We will also look at how to choose the right specialist and prepare for surgery to achieve the best results.

What is laser vision correction and when is it performed?

Laser vision correction, also known as laser refractive surgery, is a modern procedure that uses laser equipment to correct vision problems and eliminate dependence on eyeglasses or glasses. contact. The main goal of laser vision correction is to reshape the cornea, the clear front part of the eye, to allow light to focus precisely on the retina.

This is achieved by removing microscopic layers of tissue from the cornea with a laser beam, which changes the cornea's curvature and thus improves its ability to focus light. This procedure allows patients to eliminate the need for glasses or contact lenses, improving the quality of vision.

Indications for operation:

1. Nearsightedness (nearsightedness). This is a condition in which a person has difficulty focusing on distant objects due to focusing too much light in front of the retina. Laser vision correction can reshape the cornea so that light focuses on the retina, improving distance vision.
2. Farsightedness (hypermetropia). A condition in which a person has difficulty seeing close objects clearly, usually due to a refraction problem. Surgery allows you to fix the disease and in just 1 treatment.
3. Astigmatism. A vision disorder in which the cornea or lens of the eye is asymmetrical or irregularly shaped. This results in a distorted focus of light on the eye's retina, which in turn results in blurred and distorted images at both near and far distances.

Laser vision correction is considered a safe and effective procedure for correcting most vision defects. However, before deciding to undergo the procedure, it is imperative to have a detailed eye examination and consultation with an experienced ophthalmologist to determine the appropriate method, evaluate possible risks as well asbenefits for each specific case.

When should laser vision correction be performed?

Laser vision correction, also known as laser refractive surgery, may be recommended in the following main cases:

1. Intolerance to optical exposure. If a patient has difficulty wearing contact lenses or they are causing various problems, including discomfort, allergic reactions or corneal damage, laser correction may be recommended as a solution. alternative to vision correction.
2. Occupation or type of activity. Many occupations require excellent vision and cannot wear glasses or contact lenses—airplane pilots, soldiers, athletes, or firefighters. Laser correction may be recommended to improve vision and ensure independence from corrective aids.
3. Myopia (from -1 to -15 diopters), farsightedness (from +3 diopters) and astigmatism (up to +5 diopters). Corrective surgery can improve near vision and eliminate the need to wear glasses or contact lenses for close work.

Laser correction can also be effective in correcting astigmatism, which can be severe and reach values of up to +5 diopters. Patients with astigmatism may experience blurred vision and distortion, and laser correction can help correct these problems.

Types of vision correction operations performed

Experts note various procedures and methods designed to improve the vision of people with certain problems or defects in the visual system. However, if we talk about activities, they can be divided into 2 large categories:

1. LASIK (In situ Karetomileusis Assist). One of the most common laser vision correction procedures, the surgeon creates a thin, cap-shaped shell over the cornea, then lifts it up to reveal the depth of the correction and uses a laser toremoves a thin layer of corneal tissue. The valve is then reattached into place, ensuring rapid healing and minimal pain.
2. PRK (photorefractive keratectomy). An alternative surgical option to restore clear vision in which the surface layer of the cornea is completely removed and a laser is directed directly onto the exposed surface. After the procedure, the cornea will heal on its own, although it takes some time to restore vision.

However, before making the final decision to have vision correction surgery, it is necessary to consult an experienced ophthalmologist. This allows you to accurately assess the situation and choose the most suitable method, taking into account the characteristics of the visual system and the wishes of a particular patient.

Contraindications for laser vision correction

Overall, laser vision correction is considered a safe and effective procedure for many people with certain types of refractive diseases. However, it is important to remember that there are also some contraindications that may make this procedure unsafe for some patients. The main contraindications to laser vision correction include:

1. Young age. Laser vision correction is not recommended for children and teenagers because their eyes are still developing.
2. Pregnancy and breastfeeding. During this period, women may experience changes in vision, so it is recommended to postpone the procedure until the end of breastfeeding.
3. Refractive changes. Laser correction is not recommended for patients with active changes in clarity due to conditions such as diabetic retinopathy or glaucoma.
4. Physical damage to the cornea. If the patient has scars, ulcers, or other corneal abnormalities, laser correction may not be an appropriate or safe procedure.
5. Dry eyes. Patients who frequently experience a burning sensation in their eyes may experience worse symptoms after laser vision correction treatment.
6. Corneal diseases. Laser vision correction is not recommended for patients with conditions such as corneal dystrophy or keratoconus.
7. Problems with the bottom of the eyes. Patients with certain fundus diseases, including macular degeneration or diabetic retinopathy, may have limited surgery.
8. Autoimmune diseases. People with autoimmune diseases (rheumatoid arthritis, systemic lupus erythematosus, or Sjogren's syndrome) may be at increased risk of complications after laser surgery.
9. Eye infection or inflammation. If there is an active eye infection, inflammatory process or conjunctivitis, laser correction should be postponed until complete recovery.
10. Take certain medications. Some medications that affect the immune system may also affect the healing process after laser treatment, so their use may be contraindicated.

The list of contraindications may vary depending on the individual characteristics of the patient and the doctor's recommendations. Before proceeding with laser vision correction, it is necessary to undergo a thorough examination and consultation with a specialist to assess the patient for any contraindications and decide on the possibility of performing the procedure. .

How laser vision correction works: stages of surgery

Most commonly, eye surgeons perform LASIK, which can help improve the vision of people who are nearsighted (nearsighted), farsighted (hyperopia), or have astigmatism. Below are the main steps of LASIK surgery:

1. Preliminary check. Before surgery, the patient must have a preliminary eye examination, including measuring visual acuity, checking corneal shape, thickness, and general eye condition.
2. Anesthesia. Before the surgery begins, the patient's eyes will be numbed with an anesthetic drip.
3. Create a corneal valve. The surgeon creates a small valve in the cornea using a mechanical device or laser. To create valves, microkeratome or femtosecond laser methods can be used.
4. Vision correction. After creating the corneal valve, the doctor uses laser stimulation to remove a thin layer of corneal tissue. This changes its shape to correct visual errors. In the case of nearsightedness, the center of the cornea is flattened, and in farsightedness, it is made steeper. To correct astigmatism, the shape of the cornea is changed accordingly.
5. Close the valve. Once the vision correction is complete, the surgeon will carefully close the created corneal valve. It usually fixes itself without the need for stitches.

Once surgery is complete, patients should rest and avoid straining their eyes as vision may be blurred or blurred for a few hours, but in most cases, things will return quickly.

Benefits of laser vision correction

Recently, more and more people decide to restore vision using laser correction. Here are the advantages:

1. High efficiency. Laser vision correction is one of the most successful vision correction methods available today, as the procedure allows people to significantly improve their vision.
2. Fast recovery. After laser correction, most patients note a very rapid recovery of vision. Within a few days after the procedure, they can return to daily activities and even resume driving.
3. Eliminate the inconvenience of contact lenses and glasses. This procedure allows people to avoid wearing glasses, which is especially convenient for people who play sports or lead an active lifestyle.
4. Time of results obtained. In most cases, laser vision correction results are stable and long-lasting. After the procedure, many patients have stable vision and some do not even need further correction.
5. Personalized approach at trusted clinics. Modern laser vision correction technologies allow for highly personalized procedures. Doctors use advanced equipment to create precise corneal maps and analyze other factors tailored to each patient. This allows for maximum precision and results best suited to each individual's needs.
6. Convenient and comfortable. After laser vision correction, patients no longer have to worry about always carrying glasses or contact lenses with them. This brings significant convenience and comfort to everyday life.
7. Wide adjustment range. Laser vision correction can be used to correct many different types of refractive errors, such as nearsightedness (nearsightedness), farsightedness (hyperopia), and astigmatism. This means that most people with vision problems can be candidates for this procedure.
8. Quickness. Laser vision correction usually takes only a few minutes for each eye. This is a very quick process that allows patients to quickly achieve their desired results and return to normal activities.
9. Low risk of complications. Modern laser vision correction procedures have a low risk of complications. Thanks to advances in technology and physician experience, complications are unlikely and most patients achieve safe and successful results.

Laser vision correction can significantly improve a patient's quality of life. The ability to see clearly without glasses or contact lenses provides greater independence and freedom in daily life, improves confidence and promotes an active lifestyle. Overall, laser vision correction offers many unique benefits, including high effectiveness, quick recovery, and no inconvenience when wearing contact lenses.

There is no doubt that laser vision correction has become a real breakthrough in the field of ophthalmology, helping millions of people around the world to get rid of dependence on eyeglasses and contact lenses. However, before deciding to undergo such a serious procedure, it is important to familiarize yourself with its features, risks, and potential benefits. Only then can you make informed decisions and increase your chances of achieving clear and comfortable vision for years to come.