12 Myths and Facts About Contact Lenses


A list of the 9 most common rumors about contact lenses and checked for authenticity so that you don't have any doubts.

The idea of ​​creating an optical device that would allow a person with low vision to see better belongs to Leonard da Vinci himself - back in 1508, the scientist drew a diagram of two funnels filled with water. Of course, such a design could not be worn before our eyes, so for many centuries the idea of ​​creating contact lenses was forgotten.

Fortunately, we live in a time when, without exaggeration, this brilliant idea has already been put into practice, and you can forget about your own imperfect vision for the whole day just by putting on lenses in the morning. Here are just a few still refuse this opportunity because of their own errors. Therefore, we have compiled a list of the 9 most common rumors about contact lenses and tested them for reliability so that you have no doubt.

1. Contact lenses spoil vision ...

It is a myth. Vision can be impaired, regardless of what you prefer: glasses, contact lenses, or even do without everything. Probably, the rumor appeared due to the comparison of the image in the lenses and without them: the contrast creates the impression that you began to see worse.

For some time it was believed that hard contact lenses could even stop the development of myopia, but modern research has shown that improvements in such cases are minimal and short-term.

2. ... and cause addiction

Contact lenses do not contain a single substance that can cause dependence, and similar cases have never been recorded.

3. Lenses must not be worn in the pool.

And this is true. The pools contain a lot of bacteria, so wearing contact lenses while swimming significantly increases your chances of getting an unpleasant eye infection. In addition, they can simply swim away from the eye. If you still need to see well in the pool, doctors recommend either wearing safety glasses on top or wearing everyday disposable lenses that you can throw right away.

4. The contact lens may shift behind the eyeball

In fact, this is not possible for physiological reasons. The eye has a natural protective barrier that covers the protein and surrounds the eyeball under the eyelids, preventing the lens from entering the orbit.

Once truly contact lenses were uncomfortable, but science does not stand still. New generation lenses are very soft, thin, flexible and can remain wet for a long time. Users simply do not feel their presence.

6. Lenses for replacing lenses can be violated

A dangerous myth, believing that you risk an allergic reaction, conjunctivitis, corneal hypoxia and a host of unpleasant diseases.

7. The lenses can not be washed with water, only a special solution

True. In ordinary water, even well-purified water, contains unwanted impurities that can settle on the surface of the lens and cause infection.

8. There are age restrictions for wearing lenses

If you want your child to wear lenses, then you must be sure that he can already understand the rules for caring for them. And the rest, this statement is a myth. The only restriction may be medical contraindications, often not related to age.

9. Contact lenses should not be worn if you have astigmatism.

And this is also a myth. Thanks to the innovations of recent years, astigmatism is no longer an obstacle to wearing lenses, since there are toric contact lenses that correct curvature.

Come to the diagnosis at the Kazakh Research Institute of Eye Diseases at the address: Almaty, Tole bi street, 95a (corner of Baitursynov street).
Phone: +7 (775) 007 01 00, +7 (727) 279 54 36.

1. You can choose the lenses yourself, without a specialist - MYTH!

Despite the fact that lenses are sold in optics without a prescription, on the Internet and lensomats, the first selection of lenses requires a mandatory visit to a specialist.

To determine the necessary parameters for future lenses, the specialist checks the patient’s visual acuity, diagnoses the eyes with a biomicroscope, determines the condition of the cornea and the presence of concomitant ophthalmic diseases.

The first fitting of lenses is done only under the supervision of an ophthalmologist. The doctor again examines the patient’s eyes to make sure that the lenses “sit” correctly (fit in curvature and diameter) and will not cause discomfort during wear.

Can a person independently carry out all of the above manipulations and correctly select the right lenses? Definitely not.

2. If you buy lenses and glasses, then their diopters will be the same - MYTH!

The lens parameters may not coincide with the parameters of the glasses, because contact optics are located directly on the cornea, and the glasses are located on the bridge of the nose. The distance between the surface of the eye and the glass of the glasses reduces their "diopter power".

Therefore, lenses starting from −4 and lower with myopia and +4 and higher with farsightedness will always be slightly “weaker” than the lenses of glasses, although they will be no worse than correcting visual acuity. The higher the degree of myopia or hyperopia, the more noticeable becomes the difference between the optical power of contact lenses and lenses of glasses.

3. All solutions for contact lenses are the same - MYTH!

Most modern lens solutions are universal. This means that they not only clean and disinfect contact optics, but also moisturize its surface, making it as comfortable as possible for the eyes. The basis of such funds is a liquid similar in chemical composition to a human tear. Biguanide antiseptics are used as a disinfecting component.

Solutions for lenses vary in their chemical composition. For example, the ReNu ® MPS solution is designed specifically for sensitive eyes and contains a reduced concentration of preservatives 47, and in the BioTrue ® solution, hyaluronic acid is used as a moisturizing component. This natural polymer has the unique ability to attract and retain moisture. Due to this, BioTrue ® solution prevents the appearance of symptoms of dryness and irritation when wearing contact lenses.

4. Lenses can be worn longer than the specified period - MYTH!

This is not just a myth, but a real headache for ophthalmologists and a source of serious problems for contact lens users!

The fact is that lens overheating often becomes the cause of the development of ophthalmic complications: papillary conjunctivitis, superficial punctate keratitis, corneal infiltrate, etc.

On the surface of contact lenses, the components of a human tear and particles of dust from the environment inevitably accumulate. Over time, all these contaminants cease to be washed off with a lens solution - they turn into deposits that irritate the cornea and provoke the development of inflammatory processes.

Even because of deposits, the lenses no longer allow oxygen to pass through. The cornea begins to experience oxygen starvation - this condition is already a disease called corneal hypoxia.

Reduced gas permeability of the lens entails diseases such as neovascularization of the cornea (proliferation of vessels with their subsequent growth into the cornea) and red eye syndrome. As a result, the eyes become red and inflamed, there is pain, a feeling of sand in the eyes.

Also, microorganisms accumulate on the lenses over time, which can cause infection. The absence of obvious symptoms is not a guarantee that pathological processes do not occur. Usually the problem is formed asymptomatically and does not become noticeable immediately, but when a person begins to pursue discomfort and pain.

It is worth adding that when overhanging, the lens material becomes less elastic and prone to damage. Even from microdamage to the lenses, the eyes begin to hurt, dry and itch.

5. Vision affects the performance of children in school - the TRUTH!

A child who does not see well what is written on the school board will have a hard time learning. However, unlike adults, children often do not even realize that they do not see how everyone does. It seems to them that blurred vision is the norm.

Therefore, it happens that children do not complain to parents and teachers about the discomfort in learning. And adults, in turn, think that the student writes with errors simply because of carelessness or laziness. In addition, increased eye fatigue, decreased attention span, and irritability occur due to vision problems.

It is important to regularly check visual acuity in children and take timely measures to correct revealed violations.

6. The lenses are hard to care for - MYTH!

To care for contact optics of a planned replacement, you need a special container and a multifunctional solution.

In the evening, the lenses need to be removed, washed and placed in a container with a fresh portion of the solution, each lens in its own cell.

Before putting on the lenses in the morning, it is necessary to carry out a simple but important ritual: put the lens on a clean palm, drip 2-3 drops of solution from above and gently wipe the surface of the lens on each side. Next you need to rinse the lens again with a solution, after which it can be worn.

One-day lenses do not require any maintenance: every morning you put on a new pair, and in the evening just throw it away.

7. When wearing lenses you can do makeup - the TRUTH!

The main thing to remember is the following rules:

  • first put on contact optics in the morning, and only then do makeup,
  • in the evening, first remove the lenses and only then wash off the cosmetics.

It is also important to use quality cosmetic products and not to allow them to get on the lenses and mucous membranes of the eye.

8. Contact lenses can cause discomfort - THE TRUTH!

Yes, this is possible. However, this does not mean that contact optics is not for you.

Most likely, you did not fit any specific lenses or a solution for caring for them. Try to find a better and more gentle solution, for example, BioTrue ® with hyaluronic acid, which moisturizes the lenses up to 20 hours 28.

Sensitive eye owners are most often recommended to wear one-day lenses, the most comfortable and convenient to use.

9. Lenses may fall behind the eyeball - MYTH!

It is physically impossible. A thin membrane (conjunctiva) separates the posterior part of the eye from the eyelids. Thanks to her, neither the lens, nor any other foreign body can get into the eyeball.

Contact optics sometimes swims over the eyelid - this is true. Most often, such situations arise with improper selection of lenses, when the basic curvature of the lenses does not match the parameters of the eye. This also happens if you rub your eyes hard.

This is unpleasant, but not dangerous. To remove the lens from under the eyelid, you need to close your eyes for a few seconds, and then blink intensely. Special moisturizing drops can be instilled into the eye - they will help the foreign body to “float out” faster.

10. Children and the elderly should not wear lenses - MYTH!

According to the testimony of the lens can be worn and newborns. It is safe, but should always be carried out under the supervision of a specialist. On their own, a student of 8 years old can already use contact optics.

Wearing soft contact lenses significantly inhibits progressive myopia, so the sooner the child begins to wear them, the better. Most doctors recommend switching from glasses to lenses at the age of 10-12 years, as at this age children become more attentive and responsible.

Older people can also wear lenses. To correct age presbyopia, special multifocal lenses have been developed. They have several optical zones and allow people to see equally well at different distances.

11. Lenses can cause infection - MYTH!

The lenses are sterile and therefore safe for the eyes. Infectious diseases do not cause the lenses themselves, but improper care for them.

If the lenses are daily treated with a special solution and properly cleaned, regularly replaced with new ones, and prevent their contact with foreign objects, everything will be in order. Or use one-day lenses - they are even safer, since they do not require maintenance.

Do not take lenses with dirty hands - this is a direct path to the development of infection!

12. There are contact lenses in which you can sleep - the TRUTH!

Such lenses do exist.

They are distinguished by high oxygen permeability. The unique ionic silicone hydrogel material from which such optics are made contributes to maintaining the activity of the natural protective protein of the human tear. It is safer to wear such lenses when using Biotrue ® solution: it retains tear protective proteins 44.

However, sleep in contact lenses is recommended only in extreme cases, because the eyes "do not breathe." Consequently, the risk of developing acute red eye syndrome is increased. Therefore, it is better to remove the lenses at night.

As you can see, contact optics are convenient to use, effective and completely safe for the eyes. The main thing is to properly care for her and regularly checked by an ophthalmologist.

Myth one: contact lenses are harmful to the eyes.

It’s worth starting with the fact that for a long time, contact lenses have established themselves as a reliable, high-quality and absolutely safe means by which the patient can regain high-quality vision. Subject to all specialist recommendations, replacement schedules and lens care rules, a person guarantees high-quality and comfortable vision throughout the life of the lens. In addition, some types of lenses are prescribed specifically for the treatment of certain eye diseases, which confirms their beneficial properties.

Modern contact lenses are made from biocompatible materials. Their structure and properties make it possible to obtain the necessary amount of nutrients that are contained in oxygen in the cornea of ​​the eye, which means providing healthy eyesight.

Remember that contact lenses are medical supplies and their use is relevant only on the recommendation of a doctor.

Myth two: contact lenses can cause eye infections.

On their own contact correction of vision is absolutely safe and cannot become a source of infectious diseases. After manufacturing, the lens goes through several stages of cleaning, testing on high-precision equipment and, after successful tests, is placed in a sterile blister.

It is important to understand that on the outer surface of the lenses, during the period of wearing, harmful protein deposits and other trace elements accumulate - products of a polluted environment. Therefore, daily lens care is so important. But neglect of the rules of care or untimely replacement of expired lenses, most often cause infectious diseases.

The appearance of one-day contact lenses largely solved this problem. Care for such lenses is not needed, because putting them on in the morning, in the evening you will dispose of the used pair, and the next day you put on a sterile new one.

Myth three: the less often you change lenses, the better for eye health.

The more often you change contact lenses, the lower the likelihood of the formation of infectious diseases. One-day contact lenses are not only high-quality, but also safe vision. No wonder many experts recommend one-day contact lenses.The only drawback may be the high cost of this product. However, the material aspect fades into the background when we talk about health.

The fourth myth: the terms for replacing lenses can be violated, because they were invented by manufacturers so that people spend more money.

Extremely dangerous misconception. Each lens has a specific life, after which it loses all its useful properties. The "life" of the lens is carefully calculated on special equipment. If the rules for the use and replacement of lenses are not followed, the user runs the risk of acquiring unpleasant symptoms, which can subsequently result in serious ophthalmic diseases.

Contact lenses exist and have different replacement periods: two-week, monthly lenses, quarterly, traditional and continuous lenses. Which ones are right for you? The choice is yours!

Myth five: contact lenses can damage the eyeball.

This misconception occurs among people who have never used them. Scientists have given a definition, a fairly common type of phobia, which is the fear of touching the eye - pokafobiya.

Ophthalmic lenses cannot damage the eyeball, as they are very soft in structure and combine perfectly with the surface of the sclera and cornea of ​​the eye. Over time, putting on and removing lenses will be as simple and familiar as brushing your teeth.

Myth six: contact lenses can move beyond the eyeball.

This misconception has no reason. Simply open a biology textbook and familiarize yourself with the structure of the human eye. The organs of vision have a natural protective barrier that surrounds the eyeball under the upper and lower eyelids. It doesn’t matter how often you blink - this anatomical feature of the structure of the eye does not allow the lens to get inside the orbit.

Myth seven: contact lenses and decorative cosmetics are incompatible.

This is certainly not the case. Most often, this misconception occurs among people who neglect the recommendations for using contact lenses. Apply makeup only after you put on the lenses. Also, it is necessary to remove the lenses before you wash off the cosmetics.

When using an aerosol, close your eyes - do not allow cosmetics to get on the surface of the lens. In some cases, this can lead to discomfort in the eyes.

When buying cosmetics, try to pay attention to the marks that manufacturers sometimes place, for example - “Suitable for sensitive eyes”, “approved by ophthalmologists”, “suitable for lens users”. If such a marking is present - buy without fear.

Myth nine: lens care is a troublesome, time-consuming business.

Remember that proper care guarantees your eyes health. Modern technology has simplified the lens cleaning process, saving you valuable time. Put the lenses in a special solution for the night, which will do all the work for you. In addition, manufacturers have made sure that your lenses are kept in good condition on a long trip or business trip and offer a wide range of accessories. Do not use tap water to clean the lenses - it contains a large number of microorganisms that can lead to eye diseases. Follow your doctor’s recommendations and enjoy quality vision.

Remember that you can always use one-day lenses that do not require care.

Myth One: Contact lenses spoil vision

Many believe that the use of contact lenses leads to visual impairment. In fact, a person’s vision can be impaired, regardless of whether he wears contact lenses or not. This myth arose because the vision in contact lenses is significantly different from the vision in glasses. It is clear, contrasting, removing the lenses, the vision becomes not clear. The image is compared and it seems that he began to see worse. Properly selected contact lenses make the eye muscle work. Therefore, ophthalmologists often prescribe them as a method of treating progressive myopia.

Myth Two: Contact lenses are harmful to the eyes.

Modern lenses are made from biocompatible materials that are used in other medical fields. The properties of these materials allow the lenses to pass oxygen for breathing of the cornea, normal metabolism. A properly selected lens and compliance with the rules of care and replacement of contact lenses are a comfortable and safe means of vision correction.

Myth Three: Contact lenses can cause eye infections.

Contact lenses do not in themselves cause infectious diseases. Inflammation can be caused by pathogenic microbes introduced into the eye from the surface of dirty lenses. Only a lack of hygiene or improper handling of contact lenses can lead to similar problems. If you follow the instructions of an ophthalmologist for lens care and do not forget about regular disinfection, the risk of infection will be minimized. It is also important to remember: the more often you change lenses, the better for eye health. If the user of the lens complies with the scheduled replacement time, wearing the lens will be comfortable. It should be noted that with the advent of one-day lenses, this myth is completely dispelled.

Myth five: Lens is easy to lose.

Anatomically this is not possible. The lens covers the cornea and is held on the eye due to certain parameters that match the parameters of the cornea and guarantee the correct position and fit. Therefore, users of contact lenses can practice almost any sport (except swimming, because the lenses can simply float out of the eye). Only a specialist ophthalmologist or optometrist can determine the lens parameters.

Myth Six: Lens Care

Proper contact lens care is important for eye health. Modern multifunctional solutions can significantly simplify the care and storage of lenses. The best way to disinfect and clean the lenses is to put them overnight in a special solution that will do all the “work” while you sleep. If you do not want to burden yourself with lens care, we recommend choosing daily replacement contact lenses.

Myth 7: Contact lens users should not use makeup

Almost all modern high-quality cosmetics are compatible with wearing contact lenses. However, there are simple rules that must be followed. It will be better if when choosing cosmetics for the eyes, you prefer with the mark “approved by ophthalmologists”, “hype-allergenic”, “suitable for sensitive eyes”, “suitable for those who wear contact lenses”. This means that such funds are gentle, gentle. Use water-soluble, non-greasy cosmetics. For example, water-based mascara. It is desirable that the makeup is as dense as possible. Then she will not crumble and get into her eyes. Apply makeup after putting on contact lenses, and remove lenses before washing off makeup. When applying aerosols, close your eyes so that the droplets of the spray do not fall on the surface of the lenses.

Myth 8: Why spend money on contact lenses - you can have a laser operation

These operations are called kerato-refractive, refer to cosmetic corrective, like wearing contact lenses, glasses. They do not cure myopia. During the operation, under the action of lasers, part of the corneal tissue evaporates and the cornea flattenes, changing its shape. Vision becomes clear. All changes that may accompany myopia (the state of the retina, vascular tissue of the eye, a larger eyeball) do not change the eyes. If myopia is progressing, this operation cannot stop this process. The progression of myopia is a contraindication for these operations. The result of the operation is different. Myopia can “disappear” completely or partially, but in any situation, the shape of the cornea will change, which can lead to unpleasant sensations: doubling, fusion of luminous objects at night, etc. The severity of these sensations can disrupt the usual way of life of patients. It is not always possible to improve vision with glasses or contact lenses after surgery. Do not forget that after 40 years, age-related eye changes begin. In this case, you will need glasses to work close, and then for the distance. You can’t do without glasses. You can change contact lenses or glasses when changing your vision, and you can’t buy new eyes for any money.

Myth nine: Contact lens manufacturers have come up with a replacement lens for profit.

Observance of the terms for replacing lenses is a mandatory rule for wearing contact lenses. The service life of the lens depends on the material from which the lens is made and the rate of accumulation of protein deposits in it, microorganisms. This time is very carefully theoretically calculated for each contact lens, for each material.

Myth 10: The timing of lens replacement can sometimes be violated

Failing to comply with the replacement deadlines, the user of contact lenses risks allergic reactions to the eye. And, believe me, the sensations will not be the most pleasant. Currently, contact lenses are used with a scheduled replacement period of 1 month, two weeks and one day. Regular replacement contact lenses with a life of up to one month are an excellent choice. Their advantages: cleaner, do not cause allergic reactions, maintain high visual acuity, healthy eyes, while financial costs do not increase so much. For those who sometimes want to see the world without glasses, daily replacement contact lenses are suitable. Each time the lens will be clean, care for it is not required. The healthiest way to correct and the most economical option is the alternation of wearing contact lenses with glasses.


Watch the video: Contact lens -Myths and Facts (March 2020).