Dietel. A huge number of people, changing glasses for contact lenses, had the opportunity to lead amoreactive lifestyle, sports, see the world in all colors, feel healthy and get rid of the complexes.

to correct nearsightedness, farsightedness and astigmatism using soft and rigid gas permeable contact lenses. As follows from its name, "contact lens" - is having the optical properties of small lenses (soft or hard), which is placed directly on the eyeball. It is shaped "bowl" made from oxygen permeable material. The rear surface of such a lens corresponds to the shape the cornea and the front optical system corrects the wrong eye, which allows clear, as in the healthy eye, focus the image of surrounding objects on the retina, without distorting their shape, not closer, and not alienating them, as do glasses. The range of correction with contact lenses is wider than that of glasses or surgery, from 20.0 to -20.0 diopters.

pick up contact lenses may be a doctor, therefore, must seek the advice of the ophthalmologist and discuss with him the possibility to use lenses with the type and degree of impairment, age, health status and wishes. This is especially important that there are some contraindications to wearing contact lenses.

Most patients acquired soft contact lens (MCL), but the complex forms of refractive appointed and hard contact lenses (ZHKL), for example: when astigmatism, keratoconus.

Soft contact lenses are in turn divided into the lens of "traditional" and "planned replacement". Called traditional lenses, which serve for a long time (several months). Such lenses require special care to remove accumulated sediment (proteins, lipids contained in the tear film, cosmetics, dust, smoke, microorganisms). Planned replacement lenses are sold in quantities of several pairs and regularly (1-2 times a month ormoreoften) are replaced. A lens through this period just thrown away, and instead put on clean and fresh.

Easy-care lenses contributes to the attractiveness of the planned replacement lenses, compared to conventional MCL. At sufficiently frequent replacement does not require enzymatic processing, and cleaning and disinfection of lenses is enough multipurpose solution all in one. " Disposable lenses are planned replacement do not require any maintenance. Patients who are thrown out every night to use a couple of one-day lenses, perfectly healthy, happy and not going to give up contact lenses.

Studies have shown that the planned replacement lenses are allowed to considerably reduce the number of infectious and allergic complications associated with wearing contact lenses. Frequent replacement lenses can not collect deposits on the surface of the lens. This reduces the likelihood of ocular complications caused by the deposits on the lenses and solution components that are associated with deposits. Optical transparency of lenses depends on the purity of the lens surface. Deposits on the lens makes the surface hydrophobic and uneven wetting, which leads to rapid evaporation of the tear film and the sense of "dryness, and the sand in the eyes.

morefrequent replacement reduces the likelihood of carrying the damaged lens. Because these lenses are usually sold in a package of several pieces, the patients always have the lens in stock for replacement in case of loss or damage. If a patient is found that the lens is damaged, it can be replaced with a new one. Conventional lens patient can continue to be damaged, threatening to cause eye irritation or mechanical injury until until ordered new ones.

used long lenses accumulate bacteria, so are often interchangeable lenses are ideal for those who use them from time to time, only to perform any work or study.

patients for long trips can just stock up on extra lenses that eliminate the need to carry with them numerous resources for care. And do not be afraid, that during the trip will lose the lens. Especially if you travel to places where it is difficult to get help in this case.

Patients who are unsure whether they want to wear contact lenses, may try them in the campaigns of manufacturers. It also helps practitioners achieve amoresuccessful recasitment and reduces the need for returns and exchanges lenses.

In most cases the cost of annual sets planned replacement lenses is higher than the cost of traditional lenses. However, patients must remember that they get not only a greater number of lenses, but also the significant benefits of planned replacement lenses. In addition, the increased cost of lenses is partly compensated by lower costs for care products.

Today the success of contact correction in the world and in our country is obvious. Healthier and safer form of wearing lenses is increasingly strong position. Hopefully in the future some negative points will be deleted or reduced by the application of new materials, designs and manufacturing technologies.

FEW delusions connected with wearing contact lenses .
1. Can contact lenses impair vision?
Contact lenses do not impair vision, and often contribute to its improvement, since it improves the function of various mechanisms of vision.
For example: Contact lenses extend the field of view that completely eliminates unnecessary load on the eye muscles.
2. Lenses can be worn at night for several weeks, months?
Typically, the lenses are appointed in a day-wear, which means the entire period of wakefulness, except sleep, ie the lens to put on in the morning and removed before sleep. Nevertheless, there are special lenses that are used in a flexible mode of wearing, which occasionally can be worn during day or night of sleep. Recently, major foreign producers have announced the emergence of new lenses designed specifically for extended wear within 7-30 days. However, the continuous wearing a significantly increased risk of adverse complications, which further require special treatment. Therefore, most physicians are suited to the appointment of lenses for extended wear very carefully and strictly individual.
3. Can I buy lenses without a medical examination, knowing only the diopter of their points?
No, because the lenses are not just a certain optical power, expressed in diopters, but also the size (radius of curvature, diameter). The first pair of lenses have to be chosen by a doctor of the size of the cornea, and based on individual characteristics. In addition, the diopter contact lenses do not coincide with diopters of spectacle lenses. This is due to the fact that contact lenses are closely adjacent to the eye, and glasses are at a distance from him. If you wear contact lenses are planned replacement and have a recipe for them, the statute of limitations does not exceed one year, you can buy them without consulting a doctor.
4. Would not hurt me and if I wear them?
you certainly have to take the speck out of your eyes, and by analogy, you might think that a larger object, which is a lens that will give youmoretrouble. However, the sensitivity of the cornea is selective. The cornea is very sensitive to the smallest regard to its particles, which is not the big things. In it's pretty hard to believe, but only as long as you do not realize that there is a large subject that touches your eyes a few thousand times a day - it's your eyelid. When a contact lens properly selected and dressed, you will feel it nomorethan your own eyelids.