Can lenses be worn after correction? Can lenses be worn after surgery? Vision correction after laser coagulation of the retina - when you can wear glasses or lenses

Ability to wear contact lenses after laser correction vision is a concern for many people. Since the procedure may not give the desired effect or with its help only part of the problems with the eyes were solved, glasses or contact correctors could compensate for the unsatisfactory condition. If the use of glasses for a person is unacceptable, then wearing optics - the only way out. Contact lenses after surgery, the choice of their type, restrictions become important.

Is it possible to wear?

The operation is addressed with a desire to improve vision, solve the problem of ophthalmic pathology or remove a cosmetic defect. Despite the popularity of the procedure, no clinic can guarantee the quality and predict the results of the operation - a number of individual indicators decide the outcome. Vision may not be restored, it may even worsen the original condition. Discomfort may be little noticeable, but sometimes it does not allow you to live normally: astigmatism develops, eyes get tired quickly, they cannot see at dusk, etc.

You can wear lenses after laser vision correction. In some cases, doctors recommend doing this. The indications are as follows:

• To compensate when a full recovery has not occurred.
• Deterioration. Vision correction is accompanied by the removal of microscopic particles of the cornea, its shape becomes uneven. As a result - loss of clarity of vision or the appearance of astigmatism. If the cornea is already thin and re-correction is not possible, ophthalmologists may advise wearing lenses.
• Ophthalmic pathologies. Some operations are not accompanied by correction of visual acuity. After correcting individual pathologies, the need to wear glasses or lenses persists.
• Acceleration of rehabilitation, which is possible with the help of temporary lenses.
• aesthetic changes. Colored, if a person wants to change the shade or color of the eyes.

What are needed?

After the surgical intervention On the eyes, doctors recommend the use of hard lenses.

All optical products are divided into types:

• rigid, which do not change shape;
• soft, that take the shape of the eye, for example, when blinking;
• hybrid, which have the characteristics of both hard and soft.

Another conditional division is gas permeability, that is, the ability of the eye to “breathe”. If it is not there, the eye dries up, gets tired quickly. Accordingly, the selection criterion is high degree gas permeability. Both soft and hard samples allow air to enter, only the soft ones have the most high performance- no more than 38 units; in hard ones - over 200. Under the hard shell, the cornea breathes better. The lack of close contact of surfaces does not allow pathogenic bacteria to spread. In addition, after correction, the cornea changes and it becomes difficult to put on soft ones. For the safety of vision after surgery, ophthalmologists advise switching from soft to hard, gas-permeable specimens.

Wearing hard options is the most gentle: they rub less, have high breathability, and do not contribute to the spread of bacteria.

You can wear two varieties - hard and hybrid. The former are characterized by a large diameter and an aspherical shape (the lens is almost flat in the central part, and convex at the edges). They are made of polymers that retain their original state and allow air to pass through. The second - hybrid - soft at the edges and hard in the center, allow you to better adapt if the patient used only soft ones before.

Features: Is there an alternative?

The first days of corrective optics should not be worn all day, so the organs of vision will gradually get used to it.

To maximize the effect of using optical correctors, you need to give your eye time to get used to it. Ophthalmologists advise first to wear part-time to give rest to the organs of vision, and start with hybrid ones, as they are more comfortable. Often in the postoperative period, ophthalmologists offer a special type of optics with an increased diameter, aspheric or more. flat shape in the center than at the edges. This design is also called "reverse geometry". There are already successful examples of correcting myopia (nearsightedness) with these lenses without surgery. The advantages of such alternative correctors are:

What to do if laser correction or other refractive surgery does not give the desired result, but you do not want to return to glasses? In this case, you should consider using gas-tight (GP) or hybrid contact lenses. This is especially desirable if subsequent surgical intervention is undesirable or impossible.

These lenses are able to correct such optical imperfections that are not subject to glasses or soft contact lenses.

Why Vision Didn't Improve After Refractive Surgery

Despite all the achievements modern medicine, it happens that LASIK and other laser correction procedures are not able to restore visual acuity. This largely depends on the unique response of the cornea to the laser, as well as how it heals after surgery. Among the problems that can occur after vision correction are glare and halos that occur around light sources (this is especially dangerous for motorists), in addition, irregular astigmatism may develop, accompanied by a distortion in the clarity of vision. Postoperative problems can affect the quality of life, cause frequent headaches and eye fatigue.

When are postoperative contact lenses needed?

LASIK and other laser vision correction procedures act on the front surface of the eye, removing microscopic amounts of corneal tissue. This can sometimes cause corneal irregularities, making vision less clear after surgery than it was with glasses or soft contact lenses. If the cornea is too thin for a second operation, or other problems preclude a repeat surgery, gas-tight or hybrid contact lenses are the best solution.

Gas permeable lenses are rigid, they retain their shape - unlike soft contact lenses that take the shape of the cornea. This is important because the space between the cornea and the back of the lens fills with tears. This "lake of tears" covers the irregularities on the surface of the cornea, which are the cause poor eyesight. The smooth surface of the front of the GP lens optically neutralizes uneven corneal surfaces, eliminating blur and visual distortion.

Glasses are able to correct only the main anomalies - myopia, hyperopia, regular astigmatism; in postoperative disorders they are useless.

Hybrid lenses have been designed to combine the best of both worlds: the optical advantages of gas-tight lenses and the comfort of soft contact lenses. Hybrid lenses can either serve as a replacement for GPs or act as the first step in getting used to harder lenses.

You should listen to the advice of an ophthalmologist to determine which lenses are best for your needs.

If LASIK or another refractive surgery procedure fails, special gas permeable (GP) or hybrid contact lenses may be considered as an alternative way to improve vision. In particular, this option is acceptable if the subsequent operation or the positive effects of it are not possible.

The smooth and hard surface of these lenses allows you to correct those imperfections of vision that glasses and soft contact lenses cannot eliminate. This fact distinguishes gas permeable or hybrid lenses and presents them as best choice for a more effective way to improve visual acuity.

What are the reasons for not improving vision after refractive surgery procedures?

LASIK, PRK (photorefractive keratectomy) and other laser vision correction surgeries show high success rates: the latest review of published studies actually showed that more than 95% of patients are satisfied with the result of the procedure.

Unfortunately, in all cases there are exceptions. Positive result operations in most cases depends on how cornea the eye reacts to laser energy and how, as a result, the healing process proceeds.

Bright light, radial halos around light sources in some cases become a problem for the patient after vision corrective procedures. In some cases, they can cause irregular astigmatism accompanied by blurry and/or distorted vision.

Patients who managed to regain their vision as a result of surgical intervention, these problems are more easily tolerated; but for the rest - additional visual defects can cause a decrease in the level overall quality life, showing side effects, as intraocular tension, pain in the back of the head and difficulty in driving at night.

When are contact lenses required in the postoperative period?

During LASIK and other corrective procedures, due to the removal of a microscopic layer of tissue from the sclera, the front surface changes eyeball. In some cases, this can lead to pathological changes in the shape of the retina and, as a result, to a decrease in the initial clarity of vision.

These pathological changes can be corrected by carrying out an additional improvement procedure. However, in cases where the cornea is too thin to be re-exposed, or there are other factors that limit re-exposure, gas-permeable or hybrid contact lenses may be the best solution.

The use of hard contact lenses in the postoperative period

Due to the fact that GP lenses are rigid in their structure, their design is preserved on the eye, in contrast to soft lenses, which, losing their own and acquiring the shape of the retina, only cover it.

It is necessary to take into account the fact that the space between the cornea and the reverse part of the HP lens is filled with tear fluid. This "lake" of tears covers irregularities on the surface of the sclera that cause aberration. The cover lens optically replaces the surface of the cornea, eliminating blur and other visual distortions.

Compared to gas-permeable lenses, soft contact lenses are not able to create such an effect, due to the fact that they only conform to the surface of the cornea without changing it.

Of course, ordinary glasses, which in no way can affect the shape of the cornea, are not able to correct vision problems caused by it. irregular shape.

Spectacle optics is able to correct only the main refractive disorders- myopia, hypermetropia and regular astigmatism.

Special lenses for the postoperative period

Due to the fact that as a result of LASIK and other surgical procedures, the shape of the sclera changes, the patient in the postoperative period requires special lenses that are radically different from ordinary lenses. Under the circumstances, special gas-permeable or hybrid designs are required.

The modified model is a lens enlarged in diameter, with an aspherical or flatter center compared to the edges (reverse geometry design). Similar models are already used in orthokeratology to correct myopia without surgery.

Many ophthalmologists after the LASIK procedure, regardless of whether re-correction is necessary or not, recommend scleral contact lenses to patients. These gas-permeable lenses, due to their increased diameter, rest on the sclera and thus protect the entire surface of the cornea.

By protecting the entire cornea, scleral lenses can be particularly effective in correcting aberrations and irregular astigmatism. In addition, lenses help reduce the manifestations of unpleasant symptoms of dry eye syndrome in postoperative period.

Special computerized tools not required for picking conventional lenses, are used to obtain high-precision indicators of the point measurement of the corneal surface after the procedure. Based on the results obtained, a possible and rational method of vision correction is being developed. These instruments, called keratotopographs or aberometers, use technology similar to that used before laser corrective procedures.

Due to additional manipulations, the fitting of contact lenses after corrective procedures usually requires more time and material costs than the fitting of conventional lenses. In addition, the process of initial adaptation to gas-permeable lenses takes longer than getting used to soft contact lenses. It is likely that before the discomfort disappears completely, the patient will first be forced to wear lenses for a short time every day for several days.

Fitting a gas-tight lens for an eye that has undergone refractive manipulation requires special skills, similar to those required for fitting a lens for an eye with a retinal malformation caused by keratoconus or corneal transplantation. Multiple lens options may need to be compared to obtain the best match between comfort and visual acuity. In order to achieve the best results, the patient may ask his ophthalmologist to contact colleagues who specialize in the selection of lenses for particular pathologies.

Hybrid contact lenses and high-definition optics

An alternative to gas-permeable contact lenses after vision correction can be hybrid lenses or glasses with high-definition lenses. The development of hybrid contact lenses has made it possible to combine the rigidity of an aberration-correcting HP lens with the comfort of wearing a soft lens.

Often, the effectiveness of hybrid lenses is comparable to gas-permeable ones, and the process of adaptation to them is much less.

Glasses with high definition lenses are new type glasses that can correct minor violations refractions that may still remain after surgery. This correction option is suitable for patients who do not want to wear contact lenses in the postoperative period, as well as in the absence of significant corneal aberrations.

High-definition spectacle lenses are manufactured using advanced technology and equipment capable of producing lenses with more precise and higher refractive characteristics than conventional spectacle lenses. AT modern world these are called digital or "shape-free" lenses.

Many patients, whether they have had ophthalmic surgery or not, report that high-definition lenses markedly improve visual acuity over conventional lenses, helping them perform everyday visual tasks, including night driving.

To receive additional information about the correction of vision in the postoperative period and the determination of an individual method, the patient should contact his ophthalmologist.

- most effective method full recovery functionality of the eyeballs.

But there are times when a person's vision is not fully restored.

Then he needs to wear corrective lenses, with which he can clearly perceive the world. Not all patients need such a measure, therefore, after passing the rehabilitation period, you should check the function of your eyeballs with your doctor.

Why is blurred vision after correction

In spite of high efficiency methods Lasik, Femto Lasik, in many patients, after the procedure, vision is not fully restored. It depends on the condition of the cornea, lens, vitreous body. These are optical media through which a light beam is refracted and projected onto the retina.

With the help of a laser method, particles of the cornea are eliminated, due to which light rays are incorrectly refracted. Lenses may be needed after the procedure in the following cases:

• poor-quality implementation of the laser technique;
• the formation of irregularities on the cornea;
• the presence of another ophthalmic disease that cannot be treated with Lasik and Femtolasiq techniques, such as cataracts, infection of the internal contents of the eyeball, damage to the retina, and optic nerve;
• change in the shape of the eyeball, which arose as a result of the operation, resulting in astigmatism;
• an excessively high degree of myopia or hypermetropia, which could only partially be eliminated using a laser technique.

In some cases, the doctor may prescribe the use of lenses until reoperation. For other patients, this is a measure that is necessary for life, since the defects that have appeared cannot be corrected.

When is it allowed to wear lenses after laser correction

The use of corrective lenses is applicable in the presence of the following postoperative complications:

• the appearance of various glows before the eyes, which arise as a result of viewing certain images or looking at street lights and headlights;
• development of myopia small or medium degree difficulties when the absence of an optical means will lead to further progression of the process and eye fatigue;
• the formation of complications in the form of astigmatism, which is complemented by a decrease in visual acuity.

• dry eye syndrome when the presence foreign body in the eyes will contribute to the progression of the process, the development severe pain and inflammation;
• excessive thinning of the cornea the only way correction can be glasses, the use of contact lenses will damage the already delicate structure.

It is strictly forbidden to independently decide on the use of contact lenses. They should only be used with the permission of the treating ophthalmologist or surgeon who performed the operation.

Selection of contact lenses

Most often, after surgery to restore vision, it is recommended to wear 3 types of contact lenses:

• Gas permeable. These are rigid models that not only restore the function of vision, but also contribute to the formation of the form. outer surface eyeball. The patient's vision becomes stable in violation, since in the process of blinking their structure and shape does not change. This type of contact lens helps to restore vision with myopia, hyperopia and astigmatism.
• Hybrid. This type of model corrects eye function after laser recovery vision. They allow you to adapt your eyes to wearing them in order to later switch to gas-permeable lenses. This variety has a softer structure compared to gas permeable lenses, but is more rigid than the soft model. Lenses effectively pass oxygen, help moisturize the eyeball, so they are applicable even in rehabilitation period.
• Modification. These contact lenses are designed individually for each patient. They can have a larger or smaller diameter, thickness of the edges, curvature of the middle. They are effective for people who suffer from corneal pathologies. Many ophthalmologists believe that it is better to wear these types of contact lenses than to resort to a laser vision restoration technique, as it has a large number of complications.

After the operation, it is necessary not only to choose the correct model of contact lenses, but also to use them correctly. This will prevent the inflammatory condition of the cornea, which was damaged during the operation.. It will also reduce the risk of an infectious process that can penetrate into various structures of the organs of vision.

Vision is restored up to 90%

Poor vision significantly worsens the quality of life, makes it impossible to see the world as it is. Not to mention the progression of pathologies and complete blindness.

What to do if laser correction or other refractive surgery does not give the desired result, but you do not want to return to glasses? In this case, consider using gas-tight (GP) or hybrid contact lenses. This is especially desirable if subsequent surgical intervention is undesirable or impossible.

These lenses are able to correct such optical imperfections that are not subject to glasses or soft contact lenses.

Why Vision Didn't Improve After Refractive Surgery

Despite all the achievements of modern medicine, it happens that LASIK and other laser correction procedures are not able to restore visual acuity. This largely depends on the unique response of the cornea to the laser, as well as how it heals after surgery. Among the problems that can occur after vision correction are glare and halos that occur around light sources (this is especially dangerous for motorists), in addition, irregular astigmatism may develop, accompanied by a distortion in the clarity of vision. Postoperative problems can affect the quality of life, cause frequent headaches and eye fatigue.

When are postoperative contact lenses needed?

LASIK and other laser vision correction procedures act on the front surface of the eye, removing microscopic amounts of corneal tissue. This can sometimes cause corneal irregularities, making vision less clear after surgery than it was with glasses or soft contact lenses. If the cornea is too thin for a second operation, or other problems preclude a repeat surgery, gas-tight or hybrid contact lenses are the best solution.

Gas permeable lenses are rigid, they retain their shape - unlike soft contact lenses that take the shape of the cornea. This is important because the space between the cornea and the back of the lens fills with tears. This "lake of tears" covers the irregularities on the surface of the cornea, which are the cause of poor vision. The smooth surface of the front of the GP lens optically neutralizes uneven corneal surfaces, eliminating blur and visual distortion.

Glasses are able to correct only the main anomalies - myopia, hyperopia, regular astigmatism; in postoperative disorders they are useless.

Hybrid lenses have been designed to combine the best of both worlds: the optical advantages of gas-tight lenses and the comfort of soft contact lenses. Hybrid lenses can either serve as a replacement for GPs or act as the first step in getting used to harder lenses.

You should listen to the advice of an ophthalmologist to determine which lenses are best for your needs.