vendredi 23 novembre 2018

To Find Contact Lenses Columbus Is The Best Location To Check Out

By John Martin


Wearing contact lenses is among the ways present that can be used by people to correct vision. Usually, individuals who prefer not to wear sunglasses wear them due to their size and other factors. An estimated 45 million individuals wear contact lenses in the US. Two thirds out of this number are females of different ages. When one needs Contact lenses Columbus offers the perfect location to visit.

In the US, these devices are classified under medical devices by the FDA. As such, they are strictly regulated in the country. They must meet strict standards enforced by the FDA in order for them to be made and sold. Several different kinds of these devices have been introduced in the market over the years. Different brands or types of the product have different times at which they were invented and introduced to the market.

Firstly, several kinds of contact lens exist. Some of them are PMMA, hybrid, gas permeable, silicone hydrogen, and soft contact lens varieties. In the year 1938, hard or rigid lenses were introduced in the US market and their production is still ongoing. Each year, better varieties are being introduced. In 1971, soft lenses were introduced for the first time. Statistics show that soft contact lens varieties are used by more than 90 percent of all wearers of these devices.

Hydrogels are used in making soft lenses generally. These plastics are gel-like and they contain water. It is comfortable for a person to wear this because they are very slim and pliable. Wearing lens was not as popular before soft lens was created. This is because the eye is fast in adapting to the feeling of wearing them, which makes them comfortable.

An upgrade of soft lens is silicone hydrogel lens. More porosity is featured by these devices making it possible for the cornea to receive more oxygen. Achievement of more comfortable and healthier eyes is allowed for by these devices. Soft lens varieties are quite new considering that their introduction to the market was only done in 2002. Today, soft lenses are the most prescribed devices in the US.

Gas permeable lens also goes by the name RGP or GP lens. It is a rigid variety of lens that is designed to look and feel like PMMA lenses. However, unlike most rigid models, it is porous to oxygen. The fact that they are porous makes them to be fitted closer to the eye than other rigid varieties. These devices were introduced in 1978 and have since become a more popular replacement for rigid PMMA devices.

A very good option for individuals that engage in sports is offered by these devices. One can wear them to enhance vision without the fear of them causing a safety hazard when they are engaged in sports. Actually, recognizing if one is wearing contact lenses is difficult. It is reported by many children that wear these devices that they feel better in terms of how they look.

However, it is important to know that there are specific instructions that come with wearing these devices. Poor handling and failure to follow instructions have been known to cause serious problems to people. Many people contract serious infections every year because of the use of these devices.




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