For Good Contact Lenses Columbus Offers A Recommendable Destination

By John Martin


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.

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, 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.




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