Thursday, May 10, 2018

To Find Contact Lenses Gulf Shore Al Is The Best Location To Check Out

By Michael Young


Vision is a very important sense that would be hard to live without. That is why if there is even the slightest problem with vision, means to correct the problem must be found. There are two kinds of equipment that have been invented for vision correction, that is, contact lenses and eyeglasses. People wear contact lenses when they do not want to wear eyeglasses. When in need of Contact Lenses Gulf Shore Al should be visited.

There is a new method devised which involves surgery. This type of surgery is referred to as LASIK surgery. This surgery is usually done by professional eye surgeons to give one the ability to see without the need for glasses or lens. For those who do not wish to have this surgery, contact lens is an option.

Before one selects a lens to wear, they need to first consider the type of material used to make the product. The material used plays a big role in correcting the problem one has. There are five major types of lenses available that is gas permeable, soft, hybrid contact lenses, silicone hydrogel and PRIMA. These products are meant to be effective for different vision defects.

The soft-gel lens is made from a gel-like plastic which holds water. The plastic used is referred to as a hydrogel. This lens is thin in size and flexible this makes it to adapt to the shape of the eye surface. Since its production in the 1970s, it has gained a lot of popularity because it is comfortable to wear.

A silicone hydrogel lens is an advanced form of soft lens. The main difference is that the former has more porosity, which admits a higher amount of oxygen to the cornea. Introduction of this lens to the mainstream occurred in 2002 and they have continued to become more popular. They are the most popular lens in the US, and many other countries are adopting them fast.

Gas permeable lens is also known by the abbreviations RGP or simply GP lens. These products are rigid and have a close resemblance to PRIMA lenses. However, despite being rigid, they are porous and allow oxygen to pass through. The porosity of these products allows them to be fit closer to the eye compared to other rigid lenses. They were introduced in the year 1978.

Hybrid contact lens is designed to be comfortable to the wearer like other more popular products. The lens is designed with a central zone that is permeable to gas and is rigid as well. The area surrounding the central zone is made of silicone hydrogel or hydrogel material. The products are harder to fit in the eye and they are also expensive to replace, which makes few people to wear them.

The PRIMA lens is made from a hard transparent plastic material. This plastic material is known as a polymethyl methacrylate commonly shortened to PMMA. These lenses have very good optics but it can take a person several weeks to adapt to wearing them. This is because they are not permeable which means oxygen does not get to the eye thus they are not easy to get used to.




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