November 22, 2018
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.
The FDA classifies lenses under medical devices in the US. Therefore, they must meet certain regulations. The FDA ensures the lenses must be up to the standards enforced by the agency so as to be manufactured and sold. Yearly, different types of lens are rolled out to the market. Different types of lenses were invented and rolled out in the market at different times.
To begin with, there are various kinds of contact lens, including soft, silicone hydrogen, gas permeable, hybrid and PMMA. In 1983, the hard lens was introduced to the US market and their production continues. Advanced versions are being produced yearly. In 1971, there was the introduction of the soft lens. Of all the people that use contact lens, it has been proven by statistics that a percentage of over 90 use soft lens varieties.
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.
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, one should be aware that these devices come with particular instructions on their use. People face serious problems because of mishandling or ignoring safety instructions that accompany the devices. A lot of people acquire serious infections yearly for using these devices wrongly.
The FDA classifies lenses under medical devices in the US. Therefore, they must meet certain regulations. The FDA ensures the lenses must be up to the standards enforced by the agency so as to be manufactured and sold. Yearly, different types of lens are rolled out to the market. Different types of lenses were invented and rolled out in the market at different times.
To begin with, there are various kinds of contact lens, including soft, silicone hydrogen, gas permeable, hybrid and PMMA. In 1983, the hard lens was introduced to the US market and their production continues. Advanced versions are being produced yearly. In 1971, there was the introduction of the soft lens. Of all the people that use contact lens, it has been proven by statistics that a percentage of over 90 use soft lens varieties.
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.
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, one should be aware that these devices come with particular instructions on their use. People face serious problems because of mishandling or ignoring safety instructions that accompany the devices. A lot of people acquire serious infections yearly for using these devices wrongly.
About the Author:
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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