Contact lenses are one of the methods available for people to use for vision correction. They are usually worm by people who do not prefer to wear sunglasses because of their size or some other factors. In the US, an estimated 45 million people wear contact lenses. Out of these number two thirds are female of various ages. When in need of Contact lenses Columbus should be visited.
These devices are categorized by the FDA under medical devices in the US. Therefore, there are strict regulations on them in the country. Strict standards enacted and enforced by the FDA must be met before they are made and sold. Many different types of these devices have been developed over the years. There are different times at which different models of the product have been developed and introduced in 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.
Soft lens varieties are generally made using materials referred to as hydrogels. These are gel-like and water-containing plastics. The lens is thin and very pliable, which makes it to feel very comfortable to the front exterior of eyes. The popularity of wearing of contact lenses was made more popular by the introduction of these lenses. The eye adapts very fast to the feeling, making the devices very comfortable.
An advanced version of the soft lens is the silicone hydrogel lens. These kinds of lens allow increased amount of oxygen to penetrate them to the cornea as it features more porosity. This therefore creates more comfort and a healthy environment for the eyes for those wearing them. The devices can be said to be still relatively new in the market because they were only introduced in 2002. In the US, the devices are currently the most prescribed.
GP or RGP lens is the other name for gas permeable lens. It is a rigid type of lens designed to feel and look like PMMA lens. However, it is porous to oxygen unlike most rigid models. It is meant to be fitted nearer to the eye than other rigid types because of the fact that it is porous. It has become a more common replacement for rigid PMMA lens since its introduction in 1978.
Contact lenses provide a very good option for people who engage in sports activities. They can be worn to improve vision without fearing that they will cause a risk hazard when one in engaged in sports activities. In fact, it is hard to recognize if one is wearing these devices. Many children who wear these devices report to feel better about their appearances.
However, knowing that particular instructions come with wearing contact lens is important. Failure to follow instructions and poor handling are known to cause severe problems to individuals. Many individuals get serious illnesses annually due to using contact lenses.
These devices are categorized by the FDA under medical devices in the US. Therefore, there are strict regulations on them in the country. Strict standards enacted and enforced by the FDA must be met before they are made and sold. Many different types of these devices have been developed over the years. There are different times at which different models of the product have been developed and introduced in 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.
Soft lens varieties are generally made using materials referred to as hydrogels. These are gel-like and water-containing plastics. The lens is thin and very pliable, which makes it to feel very comfortable to the front exterior of eyes. The popularity of wearing of contact lenses was made more popular by the introduction of these lenses. The eye adapts very fast to the feeling, making the devices very comfortable.
An advanced version of the soft lens is the silicone hydrogel lens. These kinds of lens allow increased amount of oxygen to penetrate them to the cornea as it features more porosity. This therefore creates more comfort and a healthy environment for the eyes for those wearing them. The devices can be said to be still relatively new in the market because they were only introduced in 2002. In the US, the devices are currently the most prescribed.
GP or RGP lens is the other name for gas permeable lens. It is a rigid type of lens designed to feel and look like PMMA lens. However, it is porous to oxygen unlike most rigid models. It is meant to be fitted nearer to the eye than other rigid types because of the fact that it is porous. It has become a more common replacement for rigid PMMA lens since its introduction in 1978.
Contact lenses provide a very good option for people who engage in sports activities. They can be worn to improve vision without fearing that they will cause a risk hazard when one in engaged in sports activities. In fact, it is hard to recognize if one is wearing these devices. Many children who wear these devices report to feel better about their appearances.
However, knowing that particular instructions come with wearing contact lens is important. Failure to follow instructions and poor handling are known to cause severe problems to individuals. Many individuals get serious illnesses annually due to using contact lenses.
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If you require assistance with choosing the right contact lenses Columbus eye care center provides quality services at your disposal. To get a better idea of the products on offer, visit http://www.riversideeyectr.com/products.
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