Manufacturers of contact lenses. Selection of hard contact lenses

ZhGKL are made strictly according to custom order, taking into account all the parameters of the patient, since they require a more accurate match inner surface corneal surface lenses.

Wholesale price from 2500 rubles

ALWAYS MADE TO INDIVIDUAL ORDER

without prepayment - for regular customers

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

full prepayment - for residents of other countries

CONVENTIONAL MANUFACTURING (GROUP): lenses are sent for manufacturing upon ordering (from 30 lenses), without additional margin.

Order formation is usually carried out from 3 weeks to 2 months (check the stage with the operator). Then the lenses are made within about 2-3 weeks + 3-10 days for delivery from the manufacturer. T e order comes approximately 1-3 months after registration.

URGENT PRODUCTION (CUSTOMIZED) : 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 comes approximately 2-4 weeks after registration.

When ordering by large wholesale for free

When ordering by average wholesale + 600 rubles

When ordering by small wholesale + 999 rubles

When ordering at retail + 1500 rubles

Material: F2 made by CONTAMAC

Manufacturing method: turning

Packing: vial with 1 pcs

Rigid lenses for astigmatism correction:

- inner 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 the correction of keratoconus:

- inner radius from 4.8 to 7.2, step 0.05

- inner 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 need to specify in " Additional Information"lens diameter (mm), optical zone inner diameter (mm), number of internal radii (chamfers), including optical zone, value of each radius (mm), width of each radius (mm), feed value for each radius (mm), refraction lenses (dptr).

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

magnitude 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 specify in the "Additional Information" the lens diameter (mm), the inner diameter of the optical zone (mm), the number of internal radii (bevels), including the optical zone, the value of each radius (mm), the width of each radius (mm), the value feed for each radius (mm), lens refraction (dptr).

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

magnitude 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 are available at wholesale prices!

3250 rub for 1 lens when ordering Concor products in excess of 5,000 rubles at small wholesale prices (small wholesale)

2900 rub for 1 lens when ordering Concor products in excess of 10,000 rubles at average wholesale prices (average wholesale)

Johnson & Johnson was founded in 1886. It is one of the largest American manufacturers of cosmetics and medicinal purpose as well as contact lenses. Johnson & Johnson products are known worldwide and sold in many countries.

In 1987, Johnson & Johnson made innovative contact Acuvue lenses designed for a seven-day wearing period. Since then, more than 2 billion contact lenses have already been produced. As for the lenses supplied on Russian market, then most of them are produced in Ireland at the well-known Limerick plant.

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

Cooper Vision

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

The company is headquartered in Irvine, California.

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

It was the specialists of 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 head office is located in Texas. More than 2,500 employees work for the benefit of Alcon.

Initially, the company was founded in Fort Worth in 1947 (Texas). At 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 for ophthalmic products of this company was expanded. So the manufacturer entered the European market. Alcon currently has factories in Spain, Belgium, Mexico, France and Brazil.

Later, Alcon also began to develop and establish the 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. They chose the production of special and high-precision optics as the main specialization of their activity: telescopes, microscopes, binoculars, night vision devices. In 1971, Bausch & Lomb was the first to receive FDA clearance for soft contact lenses.

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

Bausch & Lomb has sales outlets 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 firms emerged such as OKVision, G&G Contact Lens. The most popular among their products are colored contact lenses because of the bright colors and affordable price.

ABOUT COOPERVISION (USA)

American company Cooper Vision over 45 years. For the past decade, it has firmly held the status of one of the world's leading manufacturers of contact lenses.

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 workshop for the manufacture hard contact lenses (The Contact Lens Guild), while only coming into vogue as an alternative to glasses. 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 by that time had become widely known as a public lecturer actively promoting contact lenses.

Since the beginning of the 70s. The 20th century is connected with 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 launched Aquaflex lenses made from tetrafilcon. It was the third brand of soft lenses in the US officially approved by the FDA (Food and Drug Administration). medicines) for production and sale. Since 1979, Cooper Laboratories have become known as CooperVision. Later, this name was assigned to that part of the company that was engaged in the development and production of contact lenses. It was part of it - since the range of the company's activities gradually expanded. By the mid 1980s. CooperVision was already a solid and expansive enterprise, producing not only lenses and care products, but also whole line 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 30-day continuous wear soft lenses in the US, registered by the FDA) and Permaflex.

In the second half of the 1980s. the situation on the world market has changed somewhat, and the management of CooperVision reacted to the changes late. As a result, the company began to lose its leading positions, and a production and business decline began. A crisis was brewing. Prospects for CooperVision, in the opinion of its management and prominent experts, are primarily related to the production of contact lenses and, in addition, to surgical gynecology. These two areas are the focus of the activities of the former "Dr. Gordon's Contact Lens Guild", and now one of the world's largest corporations in the medical industry. Its main goal for the near future is to meet 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 prolonged wear. 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; expression accents. Tinted colored lenses. Replacement period: 1 month; High Time 55 UV. Contact lenses monthly. Replacement period: 1 month; images. Color contact lenses. Replacement period: 1 month; Silver 07. Extended 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, which received wide use. Unlike rigid lenses, they are comfortable to wear and do not take long to get used to. Today, about 90% of users prefer soft lenses made of elastic, gas-permeable materials. Properly selected, they provide the wearer with comfort, safety and perfect vision correction. Modern rigid lenses are also gas-permeable, but because of the difficulty in getting used to them, they are usually used only in certain, particularly difficult cases.

Lens manufacturing 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. 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. The computer program monitors compliance with all parameters.

At the first stage, a diamond-tipped cutter forms the internal curve of the lens, then the surface is polished to give it absolute smoothness. Next, the outer surface is processed, which will be in contact with the eyelid, and the desired diameter is given to the workpiece. Outside 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 accurate instrument.

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

Casting

Casting begins with the manufacture of a matrix with specified parameters that correspond to the characteristics of the future lens. From the matrix, plastic form copies are made, which can be both disposable and reusable. The lower half is filled with liquid polymer and covered top, forming an internal space having the shape of 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

The technology of centrifugal molding was developed by the Czech inventor of soft lenses, Otto Wichterle. A special mold with a concave bottom and cylindrical walls is filled necessary quantity monomer. In the process of 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 mold rotation.

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 it is processed by turning inner part. The resulting lens acquires the advantages of each of the methods - smoothness outer surface and edges are combined with excellent functional qualities obtained during turning.

Today, there are many ways to correct vision. Very often, contact lenses are used to improve its sharpness 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, but the latter have many advantages.

Rigid Lens Materials

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

Indications for the use of rigid lenses

Soft contact lenses have range limitations optical power. Often they are prescribed for myopia up to -12 diopters, myopia not higher than 8 diopters. More strong degree myopia requires specific correction. Soft lenses with high optical power will have a considerable thickness in this case. This, in turn, increases the risk of complications (tight fit can lead to hypoxia of the eye). 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 provides sufficient oxygen supply to the eye. At the same time, the thickness of such lenses differs little from the corresponding parameters of soft products for vision correction.

Rigid lens design

Modern rigid lenses have an optical zone, which 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 area has the smallest dimensions. It is she who is responsible for the 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 prone to deformation and creasing. Due to the fact that their diameter is somewhat smaller than that of soft lenses, such products leave the peripheral zone of the cornea open. This, in turn, does not disrupt the process of tear exchange. 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 also important to note their cost-effectiveness: only a change in visual acuity serves as an indication for replacement. When astigmatism is also shown rigid patients indicate that the correction soft lenses in this case, it is rather difficult, the only option is to use rigid products. Orthokeratology correction is also widespread. She assumes hard lenses only at night.

Orthokeratology. What is the essence of the technique

This type of vision correction allows you to maintain its sharpness in daytime, at night it is necessary to wear special lenses. In the process of sleep, the cornea of ​​the eye changes, its optical zone becomes flatter. This form persists throughout the 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, in the presence of contraindications for carrying out. Also, this method is often chosen by people of certain professions: athletes, military, builders, etc. Contraindications to orthokeratological therapy are diseases of the cornea of ​​the eye, eyelids, all kinds inflammatory processes, dry eye syndrome.

Negative aspects of using hard lenses

In addition to the above advantages, rigid lenses have their drawbacks. First of all, a certain period of adaptation (about a week) is necessary. After getting used to, the discomfort disappears, but even a short break in wearing requires a new habituation to the products. There is some degree of corneal deformation if rigid gas permeable contact lenses have been used. Patients' feedback suggests that the use of glasses after such lenses does not bring the desired result: the image becomes blurry, the sharpness decreases. However, this is a temporary effect. After the restoration of the cornea, you can safely use glasses without losing the quality of 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 correctly choose hard lenses, first of all, you need to contact a specialist. It determines visual acuity, the maximum degree of correction. Using special equipment, the ophthalmologist measures the necessary parameters of the patient's cornea. Next up is trying on a few pairs. All these manipulations are necessary for a perfect lens fit. Making hard contact lenses is carried out purely individually, while taking into account more than 20 parameters of the eye. The engineer models the required design (optical zone, slip zone, edge region). Further, on a special machine, the product is machined in full accordance with the layout. Most well-known manufacturer in this area - the German company Wohlk. This manufacturer provides high quality products. As a rule, after 14 days you can get a ready-made set of lenses.

Daily care of hard contact lenses

First of all, any lenses require compliance with the rules of personal hygiene. Hands should be washed with soap and water before putting on or taking off. It is best to wipe them with a waffle towel to avoid getting various villi on the lens. Storage containers must be kept clean. For women there are special rules. Makeup should only be applied after the lens is worn. Accordingly, and remove it after removing the product from the eye. It is also necessary and daily cleaner for rigid gas permeable contact lenses. With its help, impurities are removed. Once a week, a deeper cleaning is carried out. It is worth noting that it is impossible to rub the lenses strongly so as not to violate 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), does not require additional enzymatic purification. It also perfectly disinfects and softens the contact lens. Over time, the product becomes more difficult to clean. In this case, rigid lenses can be polished in a special laboratory.

Special Requirements for Rigid Lens Wearers

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. At the slightest change in the condition of the eyes, you should seek the advice of a specialist. Timely treatment will avoid conditions such as corneal edema, microbial keratitis, conjunctivitis, corneal ulcer, allergic reactions. Rigid gas permeable contact lenses - excellent tool for vision correction in many cases, however, they require proper and thorough care.