Manufacturers of contact lenses. Selection of hard contact lenses

ZhGKL are manufactured strictly according to individual order, taking into account all the patient’s parameters, as they require a more accurate match inner surface corneal surface lenses.

Wholesale price from 2500 rub.

ALWAYS MADE TO CUSTOM ORDER

no prepayment - for regular customers

30% prepayment - for new clients (Moscow, Kaluga, Obninsk + all other regions of Russia)

full prepayment - for residents of other countries

REGULAR PRODUCTION (GROUP): lenses are sent for production upon placing an order (from 30 lenses), without additional extra charge.

Order formation usually takes from 3 weeks to 2 months (check the stage with the operator). The lenses are then manufactured within approximately 2-3 weeks + delivery from the manufacturer takes 3-10 days. That is, the order arrives approximately 1-3 months after placement.

URGENT PRODUCTION (INDIVIDUALIZED) : Your order is sent for production individually, right on the day of registration, without any expectations, and also arrives individually, without waiting for other orders. That is, the order arrives approximately 2-4 weeks after placing.

When ordering by large wholesale for free

When ordering on average wholesale + 600 rubles

When ordering in small wholesale + 999 rubles

When ordering retail + 1500 RUR

Material: F2 made by CONTAMAC

Manufacturing method: turning

Packing: bottle with 1 piece

Rigid lenses for astigmatism correction:

-internal radius from 7.9 to 9.0, step 0.05

-toricity T3-T12

-eccentricity from 0.2 to 1.2, step 0.1

Rigid lenses for keratoconus correction:

-internal radius from 4.8 to 7.2, step 0.05

- internal optical zone diameter from 5.5 to 6.5, step 0.1

-eccentricity from 1.0 to 2.8, step 0.2

To place an order for rigid gas permeable lenses, you must indicate in " Additional information"lens diameter (mm), inner diameter of the optical zone (mm), number of internal radii (chamfers), including the optical zone, size of each radius (mm), width of each radius (mm), feed amount for each radius (mm), refraction lenses (dopters).

For example, the lens diameter is 9.6 mm, the internal diameter of the optical zone is 7.3 mm, the number of internal radii is 4, refraction is -6.5 diopters,

size of each radius, width of each radius, feed
8,69 0,45 0,000
8,11 0,35 0,680
7,82 0,35 1,016
7,60 7,30 1,260

For keratoconus, you need to indicate in the "Additional Information" the diameter of the lens (mm), the internal diameter of the optical zone (mm), the number of internal radii (chamfers), including the optical zone, the size of each radius (mm), the width of each radius (mm), the size feed for each radius (mm), lens refraction (dopter).

For example, the lens diameter is 9.5 mm, the internal diameter of the optical zone is 6.0 mm, the number of internal radii is 8, refraction is -10.5 diopters,

size of each radius, width of each radius, feed

9,50 0,156 0,000

8,50 0,241 1,155

7,50 0,244 2,337

7,20 0,282 2,695

7,00 0,231 2,930

6,80 0,248 3,162

6,30 0,240 3,738

If necessary, a copy of the certificate is issued along with the order.

These lenses can be purchased at wholesale prices!

3250 rubles for 1 lens when ordering Concor products for an amount over 5,000 rubles at small wholesale prices (small wholesale)

2900 rubles for 1 lens when ordering Concor products for an amount over 10,000 rubles at average wholesale prices (average wholesale)

Johnson & Johnson was founded in 1886. This is one of the largest American manufacturers of cosmetics and medicinal purposes, as well as contact lenses. Johnson & Johnson products are known throughout the world and are sold in many countries.

In 1987, Johnson & Johnson introduced innovative contact Acuvue lenses, intended for a seven-day wearing period. Since that time, over 2 billion contact lenses have already been produced. Regarding the lenses supplied on Russian market, then most of them are produced in Ireland at the famous Limerick plant.

Popular brands : 1-Day Acuvue TruEye, Acuvue Oasys, 1-Day Acuvue Moist, 1-Day Acuvue Define, Acuvue Oasys 1-Day.

CooperVision

CooperVision is an American manufacturer of contact lenses. The company was founded in 1958. Cooper Vision's main contact lens manufacturing plants are located in English city Hampshire, as well as in the American cities of Rochester and Huntington Beach.

The company's headquarters are based in Irvine, California.

American factories mainly produce soft toric and spherical contact lenses, and elective replacement soft contact lenses are manufactured in the UK.

It was the specialists from Cooper Vision who first developed soft contact lenses for regular replacement. The basis of these lenses is the innovative material tetrafilcon.

Popular brands : Proclear, Biofinity, Avaira, Myday, Biomedics 55.

Alcon

Alcon is a recognized world leader in the manufacture and sale of ophthalmic products. The company's headquarters is located in Texas. More than 2,500 employees work for the benefit of Alcon.

The company was originally founded in Fort Worth in 1947 (Texas). The origins of the company were two American pharmacists - Robert Alexander and William Conner. It was the first syllables of their surnames that served as the basis for creating the name of the company.

In 1977, Nestlé acquired Alcon, as a result of which the sales area of ​​this company's ophthalmic products was expanded. This is how the manufacturer entered the European market. Currently, Alcon factories are located in Spain, Belgium, Mexico, France and Brazil.

Subsequently, Alcon also began to develop and establish production of surgical equipment for ophthalmology.

Bausch & Lomb

Bausch & Lomb is a leader in the manufacture and sale of contact lenses.

The company was founded in America in 1853. The founders of the company were emigrants from Germany J. Bausch and H. Lomb. Their main specialization was the production of special and high-precision optics: telescopes, microscopes, binoculars, night vision devices. In 1971, Bausch & Lomb was the first company to receive FDA approval to market soft contact lenses.

Bausch & Lomb manufactures a wide range of ophthalmic products and surgical equipment, which were previously produced under the Chiron and Stortz brands.

Bausch & Lomb has sales centers and factories in 25 countries.

Popular brands : PureVision 2, Biotrue ONEday, Soflens Daily Disposable, Optima FW.

Korean companies

In the last few years on the market contact correction Several Korean companies appeared, such as OKVision, G&G Contact Lens. The most popular among their products are colored contact lenses due to their bright colors and affordable prices.

ABOUT COOPERVISION (USA)

American company CooperVision more than 45 years. Over the past decade, it has firmly maintained its status as one of the world's leading contact lens companies.

The company was founded in 1958 in Rochester, New York by Dr. Stanley Gordon. Initially, it consisted of two small enterprises: a research laboratory (Cooper Laboratories) and a modest production workshop hard contact lenses (The Contact Lens Guild), at that time just coming into fashion as an alternative to glasses. The demand for the workshop's products steadily increased, so the workshop itself expanded, and 7 years after its founding it was renamed Gordon Contact Lenses, Inc. Dr. Gordon himself had by that time become widely known as a public lecturer who actively promoted contact lenses.

Since the beginning of the 70s. The 20th century marks a historical turn in the fate of the company. In 1970, Stanley Gordon created tetrafilcon, a hydrophilic polymer for soft contact lenses. Six years later, the company began producing Aquaflex lenses made from tetrafilcone. It was the third US brand of soft lenses officially approved by the FDA (Food and Drug Administration). medical drugs) for production and sale. In 1979, Cooper Laboratories became CooperVision. Later, this name was assigned to that part of the company that was engaged in the development and production of contact lenses. Precisely partly - since the range of the company's activities gradually expanded. By the mid-1980s. CooperVision was already a well-established and extensive enterprise, producing not only lenses and lens care products, but also a whole series medicines, as well as some surgical materials. The company has grown so much, and its specializations have become so diverse, that they had to be formalized legally. In 1986, the name Cooper Companies was registered - it now belonged to the company entirely, and the name CooperVision was given to a branch engaged only in the production of contact lenses and accessories for them.

At that time, CooperVision produced three lines of soft lenses: Aquaflex, Permalens (“permanent lenses” - the first FDA-registered soft lenses for continuous 30-day wear in the United States) and Permaflex.

In the second half of the 1980s. The situation on the global market has changed somewhat, and CooperVision management responded to the changes late. As a result, the company began to lose its leading position, and production and business decline began. A crisis was brewing. CooperVision's prospects, in the opinion of its management and prominent specialists, are associated primarily with the production of contact lenses and, in addition, with surgical gynecology. The activities of the former “Dr. Gordon Contact Lens Guild,” and now one of the world's largest medical industry corporations, concentrated on these two areas. Its main goal for the near future is to satisfy the demand of all categories of people who need contact vision correction.

Products: Color Tones colored lenses. Replacement period: 1 month; Cooper Clear FW. Contact lenses long-term wearing. Replacement period: 9-12 months; Cooper Flex Premium. Contact lenses monthly. Replacement period: 1 month; Cooper Flex UV. Contact lenses monthly. Replacement period: 1 month; Crazy. Colored lenses with a pattern. Replacement period: 3 months; Expressions Accents. Tinted colored lenses. Replacement period: 1 month; High Time 55 UV. Contact lenses monthly. Replacement period: 1 month; Images. Colored lenses. Replacement period: 1 month; Silver 07. Long-term wear contact lenses. Replacement period: 6-12 months.

Contact lenses were invented over a hundred years ago. For a long time, only hard lenses were produced, but in 1960 soft contact lenses were invented and received widespread. Unlike hard lenses, they are comfortable to wear and do not take a long time to get used to. Today, about 90% of users prefer soft lenses made from elastic, gas-permeable materials. When properly selected, they provide the owner with comfort, safety and ideal vision correction. Modern hard lenses are also gas-permeable, but due to difficulties in getting used to them, they are usually used only in isolated, particularly difficult cases.

Lens making methods

The production of modern contact lenses is based on several technologies:
- turning (turning);
- casting;
- centrifugal molding;
- combined methods, combining elements of the above methods, for example, the reverse reverse process.

Turning

The turning method is used for the manufacture of both soft and hard ones. Their production is carried out on the same equipment, but has some differences. Disc-shaped blanks are processed on special lathes; this process is almost completely automated. A computer program monitors compliance with all parameters.

At the first stage, a diamond-tipped cutter forms the inner curve of the lens, then polishes the surface to make it absolutely smooth. Next, the outer surface that will be in contact with the eyelid is processed, and the workpiece is given the required diameter. Outer surface and the edges of the lens are also carefully polished. At the end of this stage, its thickness and other parameters are measured using a very precise instrument.

The difference between the production of soft lenses is that after the turning stage they are subjected to hydration - immersed in saline solution with optimal pH factor. Hydrogel and silicone hydrogel, from which soft lenses are made, absorb moisture well and swell, increasing to the right size. During hydration, the hard workpiece acquires the missing softness and elasticity. At the end, the finished product is tested for compliance with optical and geometric parameters. Before sale, lenses are cleaned, packaged and labeled.

Casting

Casting begins with the manufacture of a matrix with specified parameters that correspond to the characteristics of the future lens. Form copies are made from the matrix from plastic, which can be either disposable or reusable. The lower half is filled with liquid polymer and covered top part, forming an internal space shaped like a lens. The workpiece is irradiated with ultraviolet light, under the influence of which the polymer hardens. The lens is then hydrated, measured, cleaned and packaged.

Centrifugal molding

Centrifugal molding technology was developed by the Czech inventor of soft lenses, Otto Wichterle. A special mold with a concave bottom and cylindrical walls is filled required quantity monomer. During its rotation on special equipment, the composition spreads over the inner surface and hardens. The shape and thickness of the resulting lens depend on the amount of polymerization mixture and the speed of rotation of the mold.

Reverse reverse process

The reverse reverse process successfully combines the two technologies described above. First, the convex side of the lens is obtained by centrifugal molding, then processed by turning inner part. The resulting lens acquires the advantages of each method - smoothness outer surface and edges are combined with excellent functional qualities obtained by turning.

Today there are many ways to correct vision. Very often, contact lenses are used to improve its severity and eliminate other problems. Depending on the type of material, soft and hard gas permeable contact lenses are distinguished. Of course, the first type is most often used, however, the latter also have many advantages.

Materials for making hard lenses

Rigid lenses became widespread at the end of the twentieth century. Then the main material for their manufacture was polymethyl methacrylate. The lens itself was relatively small in size. The disadvantage of such lenses was the lack of gas exchange. Access of oxygen to the cornea was achieved only due to the mobility and small size of such a correction device. However, today more modern and high-quality materials are used. Rigid gas permeable Contact lenses are made from fluorine silicone compounds. Thanks to this, the lenses have good oxygen permeability. It is worth noting that they are quite comfortable, they are made individually, and an exact fit is made for a specific patient.

Indications for the use of hard lenses

Soft contact lenses have range limitations optical power. They are often prescribed for myopia up to -12 diopters, myopia no higher than 8 diopters. More strong degree Myopia requires specific correction. Soft lenses with high optical powers will have considerable thickness in this case. This, in turn, increases the risk of complications (tight fit can lead to eye hypoxia). You can, of course, use glasses, but today experts offer modern rigid gas-permeable contact lenses. They have wide range refraction - from -25 diopters to +25 units. Usage modern material ensures sufficient oxygen supply to the eye. Moreover, the thickness of such lenses is not much different from the corresponding parameters of soft products for vision correction.

Hard Lens Design

Modern hard lenses have an optical zone that is located in the center of the product. Its diameter does not exceed 8 mm. Thanks to the sliding zone, which has a specific structure, the lens is securely fixed on eyeball. The marginal region has the smallest dimensions. It is she who is responsible for comfortable wearing of the product, provides normal exchange tear fluid under the lens.

The main advantages of these lenses

Many patients note that rigid gas-permeable rigid lenses are less susceptible to deformation and creasing. Due to the fact that their diameter is slightly smaller than that of soft lenses, such products leave the peripheral zone of the cornea open. This, in turn, does not disrupt the tear exchange process. They are also more resistant to protein deposits, so the period of safe operation increases. Since the composition is completely free of water, hard lenses cannot dry out, the patient does not need to use special moisturizing drops. It is important to note their cost-effectiveness: the indication for replacement is only a change in visual acuity. For astigmatism, hard patients also indicate that correction soft lenses In this case, it is quite difficult; the only option is to use rigid products. Orthokeratological correction is also widespread. She assumes use of hard lenses only at night.

Orthokeratology. What is the essence of the technique

This type of vision correction allows you to maintain visual acuity daytime, at night you need to wear special lenses. During sleep, the cornea of ​​the eye changes; its optical zone becomes flatter. This form lasts the entire next day. As a rule, the effect of such a correction can last two days. good for children, patients with a progressive form of myopia, if there are contraindications for the procedure. Also, this method is often chosen by people of certain professions: athletes, military personnel, builders, etc. Contraindications to orthokeratological therapy are diseases of the cornea, eyelids, all kinds inflammatory processes, dry eye syndrome.

Disadvantages of using hard lenses

In addition to the above advantages, hard lenses also have their disadvantages. First of all, a certain period of adaptation is required (about a week). After getting used to it, the discomfort disappears, but even a short break in wearing requires new getting used to the products. Some degree of corneal deformation is observed if rigid gas permeable contact lenses have been used. Reviews from patients indicate that using glasses after such lenses does not bring the desired result: the image becomes blurry and the sharpness decreases. However, this is a temporary effect. After the cornea has been restored, you can safely use glasses without losing the quality of your vision. Also, the process of selecting products is quite lengthy; their initial cost will also be an order of magnitude higher than that of soft lenses.

How to choose the right gas permeable lenses

In order to choose hard lenses wisely, you first need to consult a specialist. It determines visual acuity and the maximum degree of correction. Using special equipment, the ophthalmologist measures the necessary parameters of the patient’s cornea. What follows is trying on several pairs. All these manipulations are necessary for perfect lens fit. Manufacturing of rigid contact lens testing is carried out purely individually, taking into account more than 20 eye parameters. The engineer models the required design (optical zone, sliding zone, edge region). Next, the product is turned on a special machine in full accordance with the layout. Most famous manufacturer in this area - the German company Wohlk. This manufacturer ensures high quality products. As a rule, after 14 days you can receive a ready-made set of lenses.

Daily care of hard contact lenses

First of all, any lenses require proper personal hygiene. Hands should be washed with soap and water before removing or putting on. It is best to wipe them with a waffle towel to avoid getting various lint on the lens. Storage containers must be kept clean. For women there are special rules. Makeup should only be applied after the lens is in place. Accordingly, remove it after removing the product from the eye. It is also necessary daily cleaner for rigid gas permeable contact lenses. With its help, dirt is removed, and deeper cleaning is carried out once a week. It is worth noting that you cannot rub the lenses too much, so as not to damage the optical properties. Today, a multifunctional cleaner for hard contact lenses is widely used. It allows you to effectively remove protein deposits (for example, Boston Simplus solution) and does not require additional enzymatic purification. It also perfectly disinfects and softens contact lenses. Over time, the product becomes more difficult to clean. In this case, hard lenses can be polished in a special laboratory.

Special requirements for owners of hard lenses

Wearing hard lenses imposes certain responsibilities on the patient. Visits to the ophthalmologist should be regular. This will enable the specialist to assess the condition of the eyes. If there is the slightest change in the condition of the eyes, you should consult a specialist. Timely treatment will help avoid conditions such as corneal edema, microbial keratitis, conjunctivitis, corneal ulcer, allergic reactions. Rigid gas permeable contact lenses - excellent remedy for vision correction in many cases, but they require proper and careful care.