Contact lenses are good for persons who experience eye issues but are reluctant to use glasses or have a surgery.Research has shown that in the United States, about 30 million people use contact lenses. Soft contact lenses are the most popular lenses used by over 80 % of contact lenses users. The fact is that you can have varying types of contact lenses. This gives you the freedom to choose the type that suits you best. Since contact lenses can be made using different materials, it is imperative to know the material that will be best for you.
If categorized by the material, there are five main types of contact lenses. You should make sure that you choose the type that suits your needs. There are contact lenses made of rigid plastic known as polymethyl methacrylate lenses. The first type of contact lenses is the polymethyl methacrylate lenses that are rigid plastic. These lenses work very well, although they do not allow tyransimition of air to the eye. Many polymethyl methacrylate users take time to be able to adapt to themAlthough there are still hard contacts on sale today, most opticians prescribe soft contact.
Unlike plastic lenses, soft contact lenses are comfortable to use. The soft contact lenses are made of hydrogel that does not hinder penetration of air into the eyes.RGP lenses are lenses that are gas-permeable. Although these lenses are rigid, they are porous and thus allow penetration of oxygen. RGP lenses do not cause much discomfort to the users eyes.Another type of contact lenses is the hybrid contact lenses that are very comfortable. Although hybrid contact lenses offer a lot of comfort, they are not used by many because they are not easy to fit and are also pricey.… Read the rest