The leading position in the production of vision correction products is held by one of the oldest operating companies in the United States, Bausch + Lomb. Sales of contact lenses bring her 31% of the income. Contact lenses Optima, Bausch + Lomb Pure Vision, Soflens and MultiVision are in greatest demand.
History of creation
The company was founded by a native of Germany, John Bausch in 1853. He discovered optics, and later his friend Henry Lomb became his full partner.
The company manufactured rubber frames, binoculars, microscopes, and other precision optics, including for military purposes. This was facilitated by a collaboration with Carl Zeiss, a leader in optical instrument manufacturing. The company was among the first manufacturers of sunglasses produced for the US Air Force (Ray-Ban).
In 1966, the company received a license to manufacture and trade contact lenses from a water-absorbing hydrophilic material. In 1971, 100,000 pairs of Softlens lenses were sold.
In 1987, FDA approved the sale of Teflon-like lenses that prevent protein deposition and make lenses more comfortable.
Widely popular Soflens 66 lenses were released in the early 90s. And in 1993, thanks to the acquisition of Laboratories Conoptica and Polymer Technology, the first oxygen-permeable vision correction devices appeared. At the end of the last century, there was a technological breakthrough - contact lenses Bausch + Lomb Pure Vision were released, designed for continuous wear.
The manufacturing and trading facilities of the company, with more than 10 thousand employees, are located in 25 countries. Headquartered in Rochester.
Key Features of Contact Lenses
Lenses can be soft and hard. Rigid lenses are strong, durable, smaller, “breathe” better, therefore they are worn longer. However, they are less comfortable, can change the shape of the cornea, reducing visual acuity in glasses.
The main materials used in the manufacture of soft lenses are hydrogel and silicone hydrogel. Hydrogel allows oxygen to pass through worse, so the maximum safe wearing of such lenses does not exceed 15 hours. Its excess is fraught with hypoxia of the cornea of the eye.
According to the frequency of replacement, contact vision correction tools are divided into one-day, weekly, monthly, quarterly and annual. One day is the most hygienic - do not require care and are thrown away after use.
The wearing mode is daytime (up to 15 hours), prolonged (up to 7 days), flexible (up to 2 days), continuous (up to 30 days) and nightly (to correct the shape of the cornea during sleep).
Design can be spherical, toric and multifocal. Myopia and hyperopia are corrected by spherical, astigmatism - by toric, age-related hyperopia - by multifocal lenses.
The presence of a UV filter will protect the eye from ultraviolet radiation.
Colored lenses mimic the iris and allow you to change its color.
Production of the company
The company produces vision correction products for hyperopia, myopia, astigmatism, presbyopia, cataracts, keratoconus and other eye diseases.
The optimal choice for people who prefer scheduled replacement lenses are Bausch + Lomb Optima FW contact lenses. PureVision and PureVision2 lenses are suitable for those who want to wear it continuously or for high quality vision. Another Bausch + Lomb product, Sof Lens Toric contact lenses, will help astigmatism sufferers. Presbyopia will help fix SofLens Multi-Focal. Young people will love Bausch + Lomb Sof Lens Natural Colors.
Optimal
Hydrogel Bausch + Lomb Optima FW contact lenses are designed to be worn during the day for no longer than three months. Oxygen permeability 24.3 DK / t. The fluid content is 38.6%.
Characteristic differences:
- production method - centrifugal casting from "polymacone", a non-ionic durable material;
- surface smoothness that reduces protein deposition;
- optimal mobility and alignment;
- ease of handling provided by light light blue tinting.
Pureview
They are made from Balafilcon A silicone hydrogel. It is necessary to wear constantly or during the day no longer than one month. The water content is 36%. Permeability 112,0 DK / t. The design is aspherical. Toning is light blue.
Benefits:
- front aspherical optics improve the quality of vision in low light conditions and reduce spherical aberration;
- the use of a combination of hydrophilic hydrogel and silicone with high oxygen permeability (AerGel technology) opens the natural access of oxygen to the eye cornea and constantly moisturizes the lenses;
- the surface of contact lenses is treated with plasma, which gives it perfect smoothness and high wettability;
- the thickened middle and thin rounded edges provide excellent mobility and constant movement of the tear fluid under the contact lens.
PureVision2
New Bausch + Lomb - contact lenses Pure Vision 2 - aspherical light blue lenses made of balafilcon A silicone hydrogel are designed to be worn continuously or worn during the day for no longer than a month. The fluid content is 36%. Permeability 130.0 DK / t.
These lenses are designed for PC users, motorists and everyone who needs clear vision in artificial or insufficient daylight conditions. Their differences:
- Special high-definition optics reduce spherical aberrations, glare and ghosting, which makes it possible to see clearly, without rainbow circles and glare, even in low light conditions.
- The small thickness that makes the lenses almost imperceptible.
- Smooth surface and rounded edges for comfortable wearing.
- High oxygen permeability of silicone hydrogel, which reduces the likelihood of hypoxia and ensures that the eye receives a sufficient amount of oxygen.
Colored
Colored contact lenses Bausch + Lomb Sof Lens Natural Colors made of Polygamone hydrogel are designed to be worn during the day and replaced every 3 months. The fluid content is 38.6%. Oxygen permeability 14.0 DK / t.
Differ in the following features:
- Nine shades: “platinum” (gray), “aquamarine” (turquoise green), “indigo” (purple), “jade” (light green), “Pacific Ocean” (blue), “Amazon” (green), “topaz” (blue), “emerald” (dark green), “India” (walnut).
- Special color application and limbal ring make eye color close to natural.
- Smooth surface resistant to protein deposits.
- Resistant to dehydration.
- Optimum mobility and alignment.
Sof Lens Toric
Another Bausch + Lomb product, Sof Lens Toric contact lenses, is a toric lens made from Alfafilcon A hydrogel. Wearing during the day and monthly replacement. Permeability - 16.0 DK / t. The liquid content is 66%. Designed for people with astigmatism.
The benefits are as follows:
- The unique double lens curvature with a flatter center surface and steep edges allows for better centering and clear vision.
- Good stabilization of the axis is achieved by thickening from the center to the edge of the contact lens.
- The radius of the external and internal parts of the lens is selected so as to reduce changes in the thickness and optimal stability of the lens.
- Weight reduction, as well as the rounded edge of the lens, results in comfortable wearing and optimal lens mobility.
Sof Lens Multi-Focal
Another Bausch + Lomb product, contact lenses Sof Lens Multi-Focal, light blue multifocal lenses made of Polymacon B hydrogel, will help those suffering from age-related hyperopia. Daytime wear and monthly replacement recommended. The fluid content is 38.6%. Oxygen permeability - DK / t.
Benefits:
- Balanced mass distribution, which improves centering and operation of aspherical optics.
- A wide transition between the near and far optical range ensures clear vision regardless of distance.
- The transition zone smoothly changes focus between near and far, maintaining clarity at intermediate distances.
- The rounded edges of the contact lens gently glide over the eye cornea.
Here is only a small part of the company's products, but you can be sure that no matter what contact lenses you purchase, they will always be of high quality - legendary American quality, one of the oldest US companies.